Almost 20 years of riding and never stop learning from this channel. Tanks for your work.

@jshell3

2 жыл бұрын

I don’t even own a bike, anymore … and still enjoy these videos.

@FortNine

2 жыл бұрын

I like to think "tanks" was a puntentional typo. ~RF9

@paceyombex

2 жыл бұрын

"Tanks" I see what you did there

@CaptainCraigKWMRZ

2 жыл бұрын

I assumed tanks was just a child that never learned spell check... Or to wipe their own as.....

@danmanthe9335

2 жыл бұрын

As they say in the mechanized marines... -Bob Gump

"Like 3 homophobic men, your motorcycle is 550 lbs of pure desire to be straight." That was not a line I was expecting to hear but I'm so fucking glad I did.

@xymaryai8283

4 ай бұрын

a true example of how to make people feel accepted without disturbing the flow of a great video ^°^ any bike of mine are gay as hell though >:)

@Meisha-san

4 ай бұрын

That was such a well-scripted line, I genuinely paused the video to see who was discussing it in the comments 😂 Looks like it's also rather underrated.

@CantTreadOnMe

3 ай бұрын

Why does everyone have to accept people who make their whole identity about their sexual desires!? Why can't gay people just act like straight people and keep their sexual business to themselves!? Why do I have to approve of someone else's sexual desires when it's against my religious beleifs? Why don't my rights matter? Why do my rights have to be trampled for any group to have extra privelege over me? Just leave me alone and I'll leave you alone. Beleive what you want and ill beleive what I want. Im not trying to force gays to accept my identity so why are they trying to force me to accept theirs? Not only accept but affirm!! Im not affirming anything that is against my Catholic faith and is a sin! I'm not perfect but I strive to be. Stop trying to force me to denigrate my own values and religious identity to support your sexual identity. It has nothing to do with hate or homophobia.

@WynnofThule

3 ай бұрын

@@CantTreadOnMe Chill out dawg it's just a joke, it wasn't aimed at you... ...wait a second

@jsmit9484

2 ай бұрын

@@CantTreadOnMe So other people have to act differently to who they are in order to fit into your narrow-minded worldview? Live and let live man. If you don't like someone, just turn around and walk the other way.

This is hands down, the absolute best motorcycle channel on the internet. I've come to expect consistent, top-notch content; yet you always blow expectations out of the water. Thanks for all the effort you put into making the roads safer, and the riders smarter.

@phil4986

2 жыл бұрын

Their three and four year old content is just as spectacular.Easily better then anything on tv today.

@lolosolo7419

2 жыл бұрын

Motojitsu is what really makes people ride smarter and safer .

@rosemaryus-ct6151

Жыл бұрын

and he's really funny too lol

@hankaul6256

Жыл бұрын

Mahalo

@nickdovgi

Жыл бұрын

In every video of his I watch all of his comments are nothing but absolutely positive and talking about how well done his videos are. Its so cool to see someone consistently put out content thats always just next level and that so many people appreciate.

I want to give you guys props for actually caring about audio levels and compression with your show. Wish more did that.

@Tax2Me

Жыл бұрын

The more quality is in the content (he has the medal there) the less nuisance music and distractions are needed.

@malcolmwhite6588

3 ай бұрын

Of course he cares about compression that’s virtually what most of the video is about - damping,spring rates and compression!

Coming from a Multistrada I would have to say yes to turning on an electronic suspension….. it was truly wonderful. Great video Ryan!

@Hoppitot

2 жыл бұрын

Yo you got any of those jobs laying around?

@well_as_an_expert_id_say

2 жыл бұрын

@@Hoppitot lol let him go check in the back real quick

@Hoppitot

2 жыл бұрын

@@well_as_an_expert_id_say hell I aint doing anything dude can take 3 months as long as he finds something

@justsomedude445

2 жыл бұрын

wow id love to ride one , being mostly an off road guy in the past ive intentionally stuck with manually adjusted suspension but maybe im missing out ?

@madman432000

2 жыл бұрын

Eh, another MS rider and I would be just as happy without it. Only a few times its ever felt like it was doing really well and the rest of time just soso. I would just as soon have a standard set of forks and shock that are tuned well. Eliminate all that electronic involvement and expense. I should have bought the base model...

That was a hell of a save in the opening scene

@SoulTouchMusic93

2 жыл бұрын

That barrier was coming fast!

@yesno7378

2 жыл бұрын

Thanks

@timfagan816

2 жыл бұрын

kzread.info/dash/bejne/mpt_sdiDgtHWm9I.html Full video

@duroxkilo

2 жыл бұрын

i'm not sure if at that stage is a save anymore or just pure luck :}

@timfagan816

2 жыл бұрын

@@duroxkilo definitely the leg kick at the end that saved him 🤣🤣 I think it was just luck!

Basically just explained why electronic suspension is such a big deal, in a matter that most people can understand. Great work!

Interesting stuff, good video.. I’ve only ever had 1 tank slapper in 33 years of riding, and it’s indelibly printed in my mind! It was under hard acceleration on my ZXR 750 on a patched/bumpy part of the road. The bar oscillation went from lock to lock.. I was genuinely a passenger! Luckily, got it under control and didn’t crash. I had to stop at the side of the road though - to get myself together 😲

@jamespegg6418

2 жыл бұрын

Happened to me about 40 years ago on a Honda cbr400, going downhill at about 70mph. I'll never forget that experience. Nothing to do with suspension, more to do with wheel balancing.

@deborahchesser7375

2 жыл бұрын

Happened to me on an 09’ 1100 Hyper Motard, scared the dogshit out of me, I snatched it up into a wheelie and straightened the bars. I had to take a break until my knees stopped knocking, man what an F’d up ride that was. Be safe fellas ✌️

@randybobandy9828

2 жыл бұрын

What level of butt pucker would you say that experience was? 🤔

@manaspradhan8041

2 жыл бұрын

@@deborahchesser7375what an insane way to save yourself lmao

@phil4986

2 жыл бұрын

@@jamespegg6418 same time span on a KZ550 Kawasaki. I tried to accelerate out of it. LOL,Nope.Just held on tight and slowed down.Wound up selling that bike pretty quick.

0:30 Was out of pocket 😂

A semester of Suspension theory in 7 minutes! and YES, I would make it perfect if I could (afford it)!

@AntaresSQ01

2 жыл бұрын

As someone designing FSAE suspension, one thing i realised very quickly, is there IS a theoretical perfect solution, and that's continuous adjustment in real time, if that's unfeasible, there is simply no perfect setup and that's just it. So as long as you're in the ballpark, it's good enough, simple as that. From there tuning the suspension to personal preferences is the only thing to be done and you're as near perfect as it's physically possible without electronics.

@PartikleVT

2 жыл бұрын

@@AntaresSQ01 CDC sounds cheap and easy to DIY from a programmers standpoint

@AntaresSQ01

2 жыл бұрын

@@PartikleVT Yes but as mentioned in the video CDC or otherwise also known as DDC has limitations. It's very good indeed, and easy in concept to implement, but in practice a lot of man hours go behind designing a reliable system that stays accurate even after hundreds of millions of adjustments. The programming is also difficult behind it as it's making a lot of adjustments, how can it tell the difference between a wheelie on a downwards slope vs the road suddenly dipping out from under the wheel such as riding off a ledge? It can't. To be honest in such a scenario it doesn't matter that it doesn't know because the damping will need to be softened on initial impact and then hardened once the wheels land but there are a few scenarios where it can "trip out". And then accurate BMS units are just expensive, again that have to stay reliable and accurate for a long time. The type BMW uses can register lean angles to 2 decimal points 100 times a second. Don't get me wrong they are entirely feasible to implement, but as we can see, there is a reason the bikes that have them START at 15k (with a few rare exceptions) and most near the lower end actually have very cheap forks with DDC picking up the slack in terms of ride quality. A true high end electronic suspension unit like the Öhlins Semi actives cost 3-4 grand for a reason. Trust me, they aren't making big margins on those systems.

@PartikleVT

2 жыл бұрын

@@AntaresSQ01 I can see how the system gets larger and larger and requires more and more sensors as you start adjusting it.

@jonathanjohnson8376

2 жыл бұрын

@@AntaresSQ01 Hi, I have actually designed and patented (US9561701) an active electromechanical suspension that will use the suspension travel to charge the battery. It is even lighter than a standard suspension. I installed a prototype on my motorcycle several years ago and made a video. I have not been able to update the prototype for a while, because I am trying to manufacture an EV (scooter) that uses my other 2 patents, but if you are interested then let me know. kzread.info/dash/bejne/aX5twbyqXaaWlJs.html

I realize you'll never see this, but you're a script genius. It's the main reason I come back. Your content is superbly edited and has gotten (a LOT) better over time. Now I look forward to seeing everything new. Thanks Ryan. Happy 2022 season from Maine US. Tank slapper has only happened to me one time in my life. I was in Florida on a V-Four Honda VF750F Interceptor. I was going over an overpass and exactly as stated in the video, the front wheel came up. As it planted down again, I was on the downhill and totally unloaded the rear end. It slapped 4 times back and forth then somehow stopped on it's own. I rode 500 feet or so to the gas station where I spent a few minutes thanking all the deities. I had the cheapest tires a 90's young adult could afford, which in hindsight may have saved me the trip to the asphalt.

@martuuk8964

11 ай бұрын

The "Honda" part of the phrase "V-Four Honda" is likely what saved you. Not that nobody has ever died on a Honda (of course they have), but Honda itself has always had a very strong focus on rider safety and reliable mechanical design - they stake their honor on their bikes because it was what they made for many, many decades before bothering with the car business. The fact that the bike recovered itself so quickly is a testament to their engineering. Meanwhile, you have stuff like the Harley Death Wobble, which comes out of nowhere for seemingly no reason whatsoever (bike moving in a perfectly straight line on a flat freeway), and is difficult to safely recover unless you are at low speed and lucky. I've read that it has something to do with the "rubber mount" design they use to save a few bucks in parts cost and manufacturing, and the only way to eliminate it is with aftermarket parts.

@halycon404

10 ай бұрын

@@martuuk8964 The death wobble is caused by harmonics. It's stupid, but on some road surfaces the slow low end heavy a** cruising long bore v-twin's rocking will line up with the road surface's bumps. And like an extra kid jumping to super bounce another on a trampoline the extra shock at the right time sends the bike's engine off kilter at an unwanted angle into an uncontrollable lift. Thing is, there's no way to know. Engine speed is variable, and the speed the bike is going at to hit the bumps is also variable. It's one of those, "When the planets align the beast shall be summoned forth to lay waste to yon Harley.". And yeah, dampen the engine mount and it mostly gets rid of the problem. Not completely. It's just a basic design flaw of Harley. To get that distinctive Harley sound the engines are slightly unbalanced. No way around it if a customer wants a Harley to sound like a Harley. That sound is a holdover from before precision engineering engines and modern build tolerances. It's why even other cruisers that borrow the Harley aesthetic don't sound like a Harley. German and Japanese engineers won't let anything out the door that's designed unbalanced, they can't even conceive of doing so.

Came for the education, stayed forever for Ryan's brilliant witticisms 😊

Your joke about the 3 dudes is hilarious! Great job with the satire, and informative. Your channel is 100% better than any network

@arnoldwardenaar127

2 жыл бұрын

that one got me as well....😂😂

@MozzaBurger88

2 жыл бұрын

And the Godfather parts

@gregorylagrange

2 жыл бұрын

@@MozzaBurger88 Both were. But I didn't get the Hitler joke about fully active suspension. Unless that was a joke about the anacronym being too close to fascism.

@buddyynot1

2 жыл бұрын

The bullet proof crop top got me in this one

@vicfema

2 жыл бұрын

@@gregorylagrange the "final solution" "Endlösung" for the Nazis was the genocide of all jews....

Im in the fourth semester as a mechanical engineer student on uni and we had a lecture on linear vibrations course about skyhook on monday this week and how it works. Its good to see it from more source. Thanks.

@Geniusinventor

2 жыл бұрын

The man of culture 3:37

@THEGEEK2001

2 жыл бұрын

Where?

@benceringbauer9477

2 жыл бұрын

@@THEGEEK2001 Budapest University of Technology and Economics in Hungary.

@THEGEEK2001

2 жыл бұрын

@@benceringbauer9477 doing MEng eng too. Goodluck bro

@benceringbauer9477

2 жыл бұрын

@@THEGEEK2001 Thanks. To you as well. We’ll need it:D

any subject, YOU make it interesting. I love Mini Clarkson, and i m not afraid to hide it ! Go on Little one ! we LOOOOOVE YOU

I remember my first tank slapper, scary as hell. I was getting off of I4 doing about 120 mph during Bike Week in Daytona. I hit some small bump in the road and I thought I was going down. I managed to keep it upright, but it was a dern moment for sure!

@marks6663

2 жыл бұрын

If you were going 120, you deserved to go down.

@aarons7975

9 ай бұрын

Yah, highway construction, going on for miles on 295, they didn't really cone up or warn anyone they were doing some pavement work in one area. I hit it and went airborne at about 85 mph on crappy uneven road, then the wobbles come in. Luckily it all sorted itself out in about a second or so, though it seemed like an eternity. My butthole was so tight I bet you couldn't have pulled a banjo string thru with a bulldozer when that finally ended. I just vaguely remember saying to myself, don't lose the handlebars but don't fight them, off the throttle, let it settle out. Thankifully it heard my prayers. Don't want to go thru that again.

"500lbs of pure desire to be straight" Hahahahaha That one cracked me up! BTW, where did you get your F800 saddle bags from?

@digichalk

2 жыл бұрын

The jokes are rapid fire fast too, lmao.

@FortNine

2 жыл бұрын

fortnine.ca bien sûr. They're Nelson Rigg Adventure Dry bags, although mine are quite old. The new ones look like this: fortnine.ca/en/nelson-rigg-deluxe-adventure-motorcycle-dry-saddlebags - great bags!

@SSS-mp8th

2 жыл бұрын

Same, I laughed so hard I had to rewind because I couldn't hear the next 15 seconds worth.

@jarrod2276

2 жыл бұрын

@@FortNine Thanks!

@RobertoBerlim

2 жыл бұрын

I've just spat my lunch. Thanks Ryan!

As a retired engineer, I SO love your videos and detailed descriptions. Thank you 😊

@SavedbyHim

2 жыл бұрын

Engineers just can't help telling other people that they are, in fact engineers. Even after they are retired 😄

@hugoflores5806

2 жыл бұрын

@@SavedbyHim wasn't Ryan an engineer himself?

@SavedbyHim

2 жыл бұрын

@@hugoflores5806 Doubt it, otherwise we'd know for sure lol

@ussfreedom

2 жыл бұрын

@@hugoflores5806 I partially recall that he had an undergrad in Physics. Not 100% sure tho.

I Don't Pretend To Understand All Of The Science About Motorcycle Suspension But I Love The Way You Explain It! Thank You.

Truly adore this channel's educational voice; humorous, accessible, and helpful. Thanks for so much great teaching. It's helped me grasp so many concepts as well as feel much more empowered about motorcycle ownership. Really impressed. Thank u.

Ryan, you sir are truly a master of education. I have been riding my Multistrada 1200S for 5 years and only now do I fully understand the suspension (Skyhook) and why it is semi. To be honest I never tried to work it out, just accepted that it works.

@gabrielko2147

2 жыл бұрын

The multistrada doesnt have skyhook, no production vehicles have it. The multistrada has CDC

@jl9161

2 жыл бұрын

@@gabrielko2147 yet Ducati and Kawasaki market it as skyhook

@filthymcnastyazz

2 жыл бұрын

The only situation in which a semi is preferable

Thanks Ryan. This would have to be a subject of discussion dating back well over 30 years when we first started seeing proper adjustable suspension. As an ex Australian Superbike racer, call it learning all you have mentioned the hard way by racing (at first) bikes with only preload at the rear and not changing the front fork oils with quicker intervals. See you didn’t cover, what 99.9999% of rider actually know is the front fork oils don’t last anywhere near as long as the service manuals suggest. One other part that was failed to be mentioned is the steering damper. If a bike has all the required adjustability, and set correctly for a riders weight, conditions etc.. then theses aren’t required. However, as most riders don’t have a clue as to set up their ride to perfection then these are then just an additional safety aid to slow down and stop the tank slappers. Ultimately the bike does want to go in a straight line, so just relax, don’t fight them, and the bike will sort itself out. When I earlier referred to learning the hard way was when I tried to physically recover one at 250 kph around my home track being Phillip Island and ended up separated from the bike. My fault, not the bikes. As my team manager politely pointed out after I returned via seeing the track doctor. 👍😎🇦🇺

@Igbon5

2 жыл бұрын

That's not correct. There can always be conditions that will result in a tank slapper no matter what other settings you have. It is built into the geometry of the front steering and the shape and dynamics of the tire. All you need is for the front to get light over an irregularity in the road and that will set it off. A damper, which they all now have stops a small initial deviation from amplifying. Suzuki thought they could get away without one on the new 96 GSXR 750. It did make for quicker steering, except for the tank slappers. I know from experience. I fitted an after market Ohlin's steering damper mounted on the frame with a bracket Steve Martin gave me. From his superbike which needed a damper too. To much damping is bad but you need some and no amount of other setting can fix that. There is an inherent stability problem in all castoring wheels. Which is why supermarket trolley wheels do what they do. Did you have damper at Phillip Island?

@JF-lt5zc

2 жыл бұрын

It's a DAMPER not a dampener. We aren't putting wet rags on our necks to cool down.

@marcusgeorge1825

2 жыл бұрын

@@JF-lt5zc well done. You picked up a typo, which has been corrected. Thank you. So you use one? Anything of substance to add?

@NightMotorcyclist

2 жыл бұрын

My 1984 GPZ900R/ Ninja 900R has some skinny forks but it had an ADV system which is a gas charged system to supplement the front springs. Haven't experienced a tank slapper on this bike (provided the system is maintained) and I've tried after doing constant wheelies and going off mounds at railroad crossings.

@JF-lt5zc

2 жыл бұрын

@@marcusgeorge1825 It's not a typo issue. This term is misspoken over and over when it comes to suspension and it drives me nuts. If you (proverbial) are going to speak with authority about something, get the language right. And I do use and adjust the dampers and spring rate on my bikes, both motor and pedal. As for wet rags, sometimes I use them to cool off on a hot day or if I'm not feeling well. :D

Yes, I would engage the perfect suspension.....if available. Actually I do so each time when I start my car. That thing (Citroen C5) does have the system that matches your Skyhook idea. For the interested: The Citroen C5 has an active, hydro-pneumatic, suspension that controls every wheel individually. Sadly, it never got introduced to motorcycling. The system is incredibly brilliant! Even the ride height is adjustable... It would be great on my V-strom.

@Reverend_Salem

2 жыл бұрын

it would be heavy on a bike and probably only practical on heavy baggers

@Angry-Lynx

Жыл бұрын

It doesn't change damping in way ryan describe here. Also drive c5 with hydro. Its cool system but far from mentioned here. It just can engage sport, harder setting depending on driver inputs.

@VEC7ORlt

10 ай бұрын

C6 has adjustable damping and one of the operating modes is actually called skyhook.

This channel is a treasure trove of information I did not know I needed and now cannot live without. With each new episode comes anticipation, enjoyment and education. Well done, F9! Bravo!

2 videos in a week? What a time to be alive

Excellent explanation and entertaining as always. The dentist on the GS got me, as well as the 25k and F@ck off, 😂😂😂 The $1500 I "forked" over on suspension upgrades and tuning were definitely the best money I have ever spent on farkles.

It’s crazy to think that a KZread channel influenced me to get into riding!!! I appreciate this channel so much and I hope it continues to be my number one source until the end of my days. Plus I hope you guys do a video in the Yukon so you can really test off-road adventuring.

Thanks Ryan, I've just had the suspension on my zx14 professionally adjusted after 5 years of leaving it how the shop originally set it up. This video made it all a lot easier to understand.

As always, thank you Ryan F9 and team for the thought, humor, effort and wit incorporated in these videos. Well done.

@jeffcard3623

2 жыл бұрын

The humor is so witty, these videos are totally worthwhile even for cagers!

Man imagine a twist of the wrist remake done by this guy

@MyQUAP

2 жыл бұрын

Haha, last time i cleaned up, i found the VHS under some dust. I would be totally up for that!

@steelfoe

2 жыл бұрын

Dude I’d actually pay to support a version of that

@1Fine69c

2 жыл бұрын

Him and Motojitsu together would make the ultimate riding school

@boo_

2 жыл бұрын

@@1Fine69c No, thanks. Can't stand motojistu

@1Fine69c

2 жыл бұрын

@@boo_ why is that? i think hes a good instructor

Man... FortNine is just an exquisite taste. The cinematography and teaching content is a never ending mixture in their recipe.

Always a provocative and masterful production! Thank you!

As usual, you found a way to cram weeks of education into 7 minutes of entertainment. Genius is an understatement for your material, sir.

Other, more common causes of tank slappers include: 1/ Too much luggage weight behind the rear axle making the front and light. Watch out for luggage racks that protrude out back. 2/ Weight transfer off the front wheel caused by the drag induced by flat fronted touring screens.

I don't have motorcycle and I don't ever plan on owning one. I seriously don't have the slightest inclination, yet I love watching this channel. Been watching for like two years, just thought I'd drop in and say hello.

The no background audio approach in the technical lecture part gives me a nostalgia of the 90's educational videos, I love it

Ahh so that's why when my bike is loaded the front will wobble a bit under acceleration. Amazing video Ryan!

@kawininji8874

2 жыл бұрын

Noticed the same thing on my new zx6r, kinda scary coming from a 300 lol

@NiSE_Rafter

2 жыл бұрын

@@kawininji8874 Go get a shop to sort out your suspension settings if you're struggling to find the right ones yourself. A new supersport should not have tank slappers when set up right. Even my decade+ old second hand R6 can go full out without issue.

@lau5067

2 жыл бұрын

Always make sure to adjust your rear preload when riding with a passenger or with heavyish luggage. A few months ago I took a pillion for the first time ever. Only rode for maybe 10 minutes without adjusted rear suspension (I can only adjust preload on my 2012 V-Strom 650) and without adjusted tire pressure. It felt very wobbly and I was not confident at all. A few days later we rode again, but this time with properly inflated rear tire and preload set to maximum. Oh wow, what a difference! It almost felt as riding alone; even the tight u-turns were no problem. Now that I think about it, in hindsight the steering felt very light, I mean it felt like there was not much load on the front tire. I didn't experience any wobbly feeling, but I suspect I might have if I had been really aggressive with the throttle. So next time I think I'll adjust the front preload as well in order to shift the center of mass a bit forward. By the way, if you ride very aggressively (very fast acceleration) you might want to look into an aftermarket steering damper.

@exothermal.sprocket

2 жыл бұрын

Accelerating hard enough to cause the front tire to just skim the road surface can also induce a slapper, when those little stones and cracks in the road surface begin knocking that front tire off alignment with the direction of acceleration, and a lack of weight allowing the front wheel to pivot.

@jothain

2 жыл бұрын

@@exothermal.sprocket Yeah and gravity of moon is also possible to cause slappers.

8 years with a Kawasaki 250 Ninja. Never had a tank slapper. But seen them, and taught about them at PRS. Then it was stolen. Until I get a new home, I'm not getting another motorcycle. This is why spring is hell for me. Ryan provides me content that's the next best thing.

@jakegarrett8109

2 жыл бұрын

Probably weren't doing any wheelies (certainly not by accident) with a 250. So for little bikes, usually not a problem.

@leftcoaster67

2 жыл бұрын

@@jakegarrett8109 It was certainly a reliable steed. Maybe that's why I loved it.

@jakegarrett8109

2 жыл бұрын

@@leftcoaster67 250 is a great class for reliability. Good fuel economy, not so much power that they can break stuff (if they are decent quality), nothing too crazy to work on like synchronizing 4 carburetors, engine inspection and maintenance is similar to that of a lawn mower (and its very open and easy to get to compared to crammed in 4 cylinder engines), and of course takes like 1 qt of oil and everything super easy to maintain. Often even air cooled so no coolants to flush, just oil and that's it! My 250 Chinese Honda clone was pretty good, its biggest weakness was a weak frame (and one crazy 14 year old that would sometimes clutchless slam through gears WOT down the highway, but hey, I was that 14 year old so I can't complain too much, haha!). Made new engine frame mounts out of heavy sheet metal, and reliable as could be. I still got 90 mpg driving WOT doing 65 mph on gravel and pinned whatever speed it would do on highways. It even did 109 mpg with 2 people riding when my dad drove it, so not bad, and other than changing tires pretty often didn't have to do too much. Also changed sprockets for higher speeds (duel sport enduro, so they probably didn't plan for it to do 75-80 mph), did better than my skill level off-road too. I would be driving that right now but its parked halfway across the country, and if I spend 2 or 3 days non-stop driving it to me, well I'd make enough to pay for almost half of another one (and I'll probably move back close to it anyways and have to drive it back again). Otherwise not bad, very lacking for passing on highways and weak going into 50 mph headwinds, but other than that it was a fun reliable bike.

This video could not have been more timely. You guys are legends. Legit my favourite YT channel in a long time, and I watch a *lot* of YT!

I've never seen this channel before just now but I really enjoyed it. Informative with clever and engaging writing that doesn't feel information dense or hokey and try hard. Worth a sub!

I always find your reviews/comments entertaining at the least and, more importantly, very useful information! My favorite motorcycle related channel!

You really should have covered the finale common cause of tank slappers. Out of adjustment or worn out neck bearings.

@rightwingsafetysquad9872

2 жыл бұрын

And the spring rates on bikes with dual rear suspension not matching perfectly (Harley Dyna).

@Matty_Ice9

2 жыл бұрын

Wheels not weighted properly can also cause them, and on super sports too much weight on your wrists can also cause them as well. I'm especially conscious about this on my r6.

@TheStuartstardust

2 жыл бұрын

@@Matty_Ice9 Yes, balancing or tires with wear or new poor quality tires can increase chance of it to happen. I had those. Also totally had forgotten, but in my youth I had a pocket bike - too firm grip would make it wobbly instantly! 🤔 Crazy sensitive steering, would not like that on an bike going over 25 mph 🙃

@patrickwassall116

2 жыл бұрын

And mis-adjusted forks in the triples shortening trail too much causing an overly nervous front end

@dougm9007

2 жыл бұрын

And uneven fork oil levels due to a leaking seal or pitted fork tube

This channel is great! Superb technical explanations combined with lots of humor. Love it!

Boy this is one of the densest compilation of knowledege in any knowledge field. There is stuff in here for a year of learning in about 7 Minutes or even less. Congratulations on this marvelous video. I'm not much of a biker any more, too old, but I wish I had taken the time to learn this when I was younger. Kudos

4:35 Paulo Gonçalves crash in 2016 Dakar rally. He kept going. Died in 2020 Dakar rally.

Yeap, definitely top KZread content! It almost feels like he had a full degree on VFS, and a big team behind cameras!

I’m new to motorcycling and I do not think I will ever cease to learn from this channel

I'm late to this party (just found FortNine a week or so ago). I really enjoy your explanations, vibe, friendly & disarming approach, and low-to-no sales tactics. You've got another fan!

Just got done watching a bunch of tank slapper vids and wanted to know the why behind it. Thank you so much for you video! I now know the why behind it. I hope those guys figured it out and got there bikes suspension dialed in. Very scary thing to happen!

@ashleynobody5281

Жыл бұрын

@ᴛᴇ𝒙ᴛ ᴍᴇ ᴏɴ ᴛᴇʟᴇɢʀᴀᴍ @𝑺𝒊𝒓_𝑭𝒐𝒓𝒕𝑵𝒊𝒏𝒆𝒆 hello?

These videos are so informative and intelligent. I often finish them feeling smarter.

Consistently among the best videos/channels on all of KZread, on any subject. All aspects are top notch, research, writing, camera, sound, infographics, presentation, music, etc. All finely tuned, ahem. Thank you.

Absolutely crushed these videos. I’ve been riding less than six months and I’ve learned so much and was super entertained

Good suspension setup can really work wonders! Dave Moss has great videos on this topic on KZread. My old Hypermotard had the tendency for speedwobbles, especially with much wind or bad roads. I took some time to really adjust the suspension and this problem was gone.

Absolutely love this channel and I'm always really excited whenever I get an alert of a new video. Ryan's knowledge seems to know no bounds, so I was surprised to see him get it backwards at 2:15 - the top part of the spring he is holding is the softest, stiffest is at the bottom.

@ianwarren

2 жыл бұрын

Noticed that too but not a suspension expert so wondered if I had got it wrong 😑

@Thisious

2 жыл бұрын

the soft section of spring is what is causing the section with a wider gap to act in a progressive manner by preventing it from twisting and creating a shorter functional wire, increasing spring rate. this makes it the stiffest at the section closest to where the "soft" coils are. the short twists are not really a part of the spring, as far as springing functionality goes, more an accessory to the spring that using funky fysics to trick it into behaving nonlinearly. kind of like preloading negative twist onto the wire so when it is compressed, the section closer to the tight coils will not want to twist as much

@calvinnoah6372

2 жыл бұрын

Chalk board diagram shows advised position for installation, does it really matter? The spring reacts as a single unit, invert the fork assembly the spring still reacts the same.

@flechette3782

2 жыл бұрын

I don't think it matters. The soft part of the spring will compress the most at first no matter if it is at the top or the bottom. All forces are linear.

@youtubehandol

2 жыл бұрын

@@flechette3782 The issue was his pointing, not his aversion to the laws of physics.

Again: Good Job, as always! I see the comment regularly that this is the best Motorcycle related content on YT but after nearly exhausting your library I am convinced you have the best "Do-It-Yourself" content on the Inter-Web! I watch everything from Auto-Centric to Xylophone Repair and Race/All Terrain/Off Road/4X4 to DIY of every topic and I do not see the consistent high quality and creative thoughtfulness of F9. Nobody, Nowhere, Knowhow. I will shut up now and start at the top. Thanks for the great Videos and for sharing your talents.

You really have some of the best videos on KZread, funny yet super informative. Your personality is great keep it up!

The humor in this episode was especially on point! Well done, well done!!!!!!!!

He’s done it again, always looking forward to watch your videos.

It's almost unbelievable how good your are in explaining basic physics and its application. Thank you!

Never drove a bike since driving licence test, but I really like learning stuff from your channel... great work...

Keep up the great work and awesome content Ryan! By far my favorite channel on the tube!

Another informative and entertaining video! Great stuff!

Even going back as recent as 8 months and you can see how much the video quality increased recently, and this is still brilliant, it just all got, brillianter

This is a great video. I talk to a lot of people that want steering dampers to "fix" front oscillation but I always tell them they're fixing the symptom instead of the cause.

Ryan's videos have gotten so good that I like them before I start watching them now

@davidsii4173

2 жыл бұрын

Same

I had the phone in my hand and I'm still number 6. I guess it shows how much we love his work.

Man, you've got a great gift of instruction. It's truly marvelous how you can make complex concepts understandable. Please post some teaching videos. Maybe Canadian civics or the history of the French and Indian War? I also appreciate the work you put into every video- the production value and pace. Thank You.

such perfect timing, this video dropped after I just booked a hotel for an event.

Don't forget to teach Ryan how to pronounce "Warwickshire" while he's there!

@MotorMedia

2 жыл бұрын

Here just for this comment 😂 worrickshir?

@Rufus-OG

2 жыл бұрын

Yup, that made me laugh. Let’s hope he doesn’t go to Leicestershire 🤦‍♂️😂

@anuverun6762

2 жыл бұрын

Or Worcestershire ;)

@rstmg60

2 жыл бұрын

You all beat me to it!

You're writing/humor is as incredible as your technical content!

You stated the essential points of suspension in a clear consice way. Keep up the good work. Ive made rally shocks worked on race teams setting up suspension and I learn something from each of your videos.

Absolutely incredible stuff as always. This is one of the only channels that never ever let's down

Suspension is definitely one of the hardest things to get right on a motorcycle.

@andrechagas4549

2 жыл бұрын

Check Dave Moss' tunning channel!

@ianwarren

2 жыл бұрын

Ask the Superbike teams? They will agree with you!

@madman432000

2 жыл бұрын

@@andrechagas4549 Is that the guy who tells everyone to set their sag correctly most of the time, because they all jacked the preload up to max.

@GIGABACHI

2 жыл бұрын

It's frigging Witchcraft if you don't do it often and on different bikes.

@patrickwassall116

2 жыл бұрын

@@madman432000 full ergos and fork / shock setup

Got more invigorated into riding from this channel. It’s fun too learn and a few pieces of gear made riding way more comfortable.

I work with (mtb) suspension for a living, this was better explained than I ever could!

Ok wow. Thats got to be the wierdest coincidences I've ever had. I just started my internship at a motorcycle manufacturer in that particular department with my supervisor being the guy who had a major role in developing such a system and my Bachelors thesis probably revolving around the comfort and ride stability achieved by a semi-active suspension. Just wanted to say thanks, since your videos were one of the reasons that ramped up my interest in motorcycles and made me make the leap of applying at said manufacturer. Cheers!

I think Godfather Part 2 was the best.. Then part 1 and part 3. Great 🎥 mate!

May not see this... But thank you... I'm still learning on my own... Physically... But you have been a huge part of my awareness, patience, staying grounded. Ty

I have had bikes for many many years and never really thought much about the suspension. I just had my xt660x suspension set up with Hyperpro progressive springs front and rear. Goodness me IT FEELS LIKE A DIFFERENT BIKE! Truly an amazing improvement and the best 600 UKP I ever spent on a bike for sure! Keep up the great work please! Simon

In motocross this was called headshake, if it ever happened to me I would counter it by hitting the rear break. And yes I set up the suspension properly.

I’d push that button. I wish my bike had more adjustment but so far it’s been fine after setting the preload. ✌️

I put off everything else if I see a new F9 video. I hope he never stops posting this amazing content.

I recently found this channel...love the way you explain things and your humour...i am watching now all the videos ...very informative...thanks

The Bose active suspension was great - and completely ignored by everyone. You have to wonder if the extreme power requirement and mass penalties it incurred 40 years ago (plus potentially uber-unreliable 1980s electronics) would be such an issue today... When I started riding ABS was a multithousand dollar option only on top end bikes. By the end of the 80s it was a few hundred dollars on scooters and now it's standard equipment to the point that non-abs is banned in many markets

@joshslater9835

Жыл бұрын

My bike doesn't have ABS and I was wondering if you can feel it/notice it when braking?

@elionh4532

Жыл бұрын

@@joshslater9835 of course you can feel it. ABS allows to steer while braking fully, not just slide forward.

Great channel this, I always wondered how electronic suspension worked! Word of advice though Ryan, don’t let the locals hear you pronouncing Warwickshire like an American😜🖖

WHAT A FANTASTIC COMMENTATOR! Ryan, your a star!

Always check the manufacturers manual on how to adjust and/or service the suspension on your bikes, they're all different. Thank you for your uploading this.

Another way to preload the front end is to lower your forks. Not a ton, obviously, but small adjustments can do some pretty amazing things. I rode an R6 for a lot of years commuting. I found the front end too light for around town so I dropped the forks 10mm to plant the tire better. Worked wonders.

I work at ups as an early morning preloader. Every time I see a F9 box pass me I want to write "I approve" or "joffery " on the box.

@FortNine

2 жыл бұрын

Not that I have any authority in this matter whatsoever, but I approve. ~RF9

@iamtheiceman

2 жыл бұрын

I gotta say, I have an odd sense of pride, every time I receive my order from FortNine. Love seeing the name on the box, love explaining it to others, and what it represents.

@SimonBrisbane

2 жыл бұрын

I would agree except he stocks Chinese made products. We are feeding a Communist beast and it won’t end well.

Love the videos. Teaching us riders about safety and physics... they should show these kind of videos in MC class lol. Our instructor didnt even teach anyone how to downshift properly. One morning the ground was slick and the instructor had to demonstrate a fast stop... he ended up falling hard and broke a bone. needless to say ive never felt so embarrassed for another person. Stay safe yall

My heart! That squealing damping-control was… adorable.

I didn't know the rear shock was affected by the angle changes. A fun fact is that on a variable spring it does not matter which way around they are placed. The weakest part will always compress first which makes perfect sense but a lot of people think you need to put them a certain way.

@kaggen

2 жыл бұрын

You could affect the amount of unsprung weight. If most of the spring has to move towards the end that compresses first it would act as unsprung weight. But to be fair, the amount of weight in the spring versus the wheel, brakes and lower fork is pretty much negligible.

@kaggen

2 жыл бұрын

After thinking about it some more there's also the effect of "waves" through the spring. Basically it takes a little time for the force to travel through the spring, and for the entire spring to equalize. The wave would travel faster through the stiffer part of the spring. kzread.info/dash/bejne/Y2Rhs6mhnZjOl8Y.html Sorry for babbling, not at all meant as coming at you, it was just interesting to think about :)

@willspeakman2461

2 жыл бұрын

@@kaggen No need to apologise. I am learning a lot of new things thank you.

My 2011 very modded Mini Cooper uses linear springs. Always know what my suspension is gonna do.

I was very excited to hear you are coming to see us in the UK at the ABR. Can't wait to see you there.

Good to hear you're coming to my home county! I aim to be at ABR this year so will keep an eye out.

Thank you so much for this video Ryan. I have been having some issues with mild tank slappers under hard acceleration on my r6 and have been at a loss wondering why. Thanks

Canada’s greatest export since maple syrup Also if someone told me to get a quart of fork oil, I would have thought they were messing with me like asking to get some blinker fluid.

@frankthetankricard

2 жыл бұрын

You can't have damping without some sort of non compressible liquid. Designs with non serviceable damper cartridges exist but those are also prefilled with fluid from factory. Makes sense to use oil, it can double as lubricant to the moving parts as well. Fork oil is essentially hydraulic fluid specially formulated to prevent foaming under rapid movement.

@prestobizmal

2 жыл бұрын

@@frankthetankricard makes sense to me! kzread.info/dash/bejne/hIx-rcahYa7AYNo.html

@professorvoluck9311

2 жыл бұрын

Hum…Canadian Bacon with that Maple Syrup?

I enjoy your vids and have learned a bunch thanks!! 1988 Honda GL1500 97k miles, my tank slapper issues were due to worn front tires, steering head bearings needed minor re-torquing and loose bolts securing front forks.

I cam here from a comment thread from a random reddit post that popped up in my feed and I am flabbergasted by the quality of this video. I don't own a motorcycle by I ended up watching the whole video instead of just the part mentioned in the comment as a demonstration.

When I saw the title of this video I was hoping you were going to talk about steering dampers to avoid tank slappers. But I don't think you mentioned them. Are you perhaps going to make a sequel video which does elaborate on steering dampers. I believe they're extremely important in circuit racing, be it on and off road. But for some reason they're mainly used in rally racing (like Dakar) and almost never in motocross and enduro. I don't understand why.