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@Justkeepshredding

Ай бұрын

Concerning the last question, what if I dropped it 10 or 20mm for racing and kept it 180 for park. Yay or nay nay?

@the.chilers8577

Ай бұрын

Hi, I could put 29 tires on 28 rims, I mean from a thin tire to a wider tire, because the ring sizes are 622 to 28, 29, right?.

@marioreno2466

Ай бұрын

@@the.chilers8577 stick with 29 tiers and 29 rims dont mess around or else you will regret it when you get up to speed and the consequences are very dramatic

@marioreno2466

Ай бұрын

@@Justkeepshredding go for it! being your best mechanic is how you learn. But, everything is very specific on the situation. In a park, ya i would go no more than 150mm and slam away because I AM BMX FOR LIFE, BUT then if i go wild in the rough I would go 200mm if I could. It is all what you feel comfortable with? Don't be afraid to change a lot to suite you needs at any given moment. I have been park at 140mm travel for years because i like the pop and play but if I'm DH WC then I am smooth and 200mm all day. you do you and figure out what makes you happy.

Love that he is doing this in the wild :) Also, a very good, natural presenter. He is not “presenting”, he is talking to somebody on the log

@imilic8

Ай бұрын

he reminds me of Jon Cannings back in the day on GCN Tech 🙌🏼

@OwenBikeNerd

18 күн бұрын

Thank you - more out in the wild #AskGMBNTech soon promise!

I just put a Dorado on my V10... can't wait for the mountain to open, I used to love my 2002 Shiver

I still have my 2000 Foes DHS with the Foes F1 inverted fork! The bike and fork were incredible for their time!

Sorry for the rant, I can't express how correct, informative and enjoyable you boys are, and enjoy every minute of geeking out with ya'll. You all remind me of the great moto magazine editors of the 90's. Keep doing you cause we all enjoy and appreciate ya'lls efforts at giving back to our community with your knowledge. Thank YOU!

You mean the shivers iv had in the shed for 20 years are coming back into fashion 😂

@ianiscaratti6412

Ай бұрын

yes. rulezman just released a replica for 3k

@mikepage7666

Ай бұрын

@ianiscaratti6412 I knew there was a reason I kept them lol, I'll check em out, I really like the push ones but a tad pricey 🤮

I'm running 3 bikes with mid '90s Rock Shox Judys or Indys, and still have some Halson inversion forks (1" steerer). There's someone on the Retrobikes forum who manufactures elastomers for them.

I own a lefty fork and man I love ir so much... No maintenance problems in my experience for now and the riding experience is sublime. Stiff, plenty of feeling... great overall fork.

Coming from motocross, the "upside down" forks were normal to me. Very interesting in why MX and MTB use different forks.

@DirtlovR

Ай бұрын

The answer is really simple: weight. MX forks can be made stiff because weight isn't that much of a factor. In mtb weight was always important, less in downhill/freeride where some interted forks appeared (like already mentioned Dorado or a good old Marzocchi Shiver), more in xc or trail riding. Drawbacks of inverted forks simply outweigh the advantages.

@jacksondaniels8169

Ай бұрын

Former sport racer and rider, as well as mx and atv. I've said this for decades. Yet, it's always a naysayers that spout weight, bla, bla, bla. Those same people said we'd never have shocks on bikes, period. Mountain roadies need not apply. This will be DH and Enduro specific before anything else.

@exothermal.sprocket

Ай бұрын

In the motorcycle world, the benefit of increased rigidity at the clamps (larger tubes at the top) dealing with braking forces and lateral flexing forces, the less unsprung mass reciprocating when the suspension strokes was the real reason.

@theblishknovk

Ай бұрын

Also mullet set up on dirtbikes forever.

@galenkehler

Ай бұрын

It's a few things really: 1. Ease of swapping wheels. It's still a concern to have easy to remove wheels for trailsode service. 2. Weight, especially of the clamp. You'd increase the unsprung weight too much with the clamp 3. Cross compatibility, with standard parts. The upside down forks never got enough market share because of the other issues to justify the oversized hubs that would make it competitive.

I’ve run to the problem one of your viewers mentioned where I have removed the old sealant to add new sealant. When the tires was inflated it was seeping out of the sidewall. My particular tires are the Specialized 2Bliss line. They are a pain to set up for that reason. Once they are through the tire does great.

Owen's a great presenter!

3:32 so the Lead weights on DH bikes make sense to me now. Thanks! you learn something every day.

2014 Fox Talas is still a nice fork, still a fair competition to modern 30...34mm forks. Rather depends on the damping cartridge if you have performance or factory build. And to be fair, that was a somewhat pivotal year in tech. Bike in question has thruaxles, shorter stem, routing for the dropper and most probably 29 inch wheels (depends on the size). Now try upgrading something mainstream from 2013 - pretty much everything goes to bin

Great video 👍

“Tyres have gotten really tight on rims and that’s a good thing”. Me and millions of others disagree.

@Wimbelder

Ай бұрын

It is beter because less chance to Leek and never had a tyre that won’t go on

@johndef5075

Ай бұрын

I saw a tool called the Tire Glyder thats looks like it might make the job easier.

@FunctionFIVE

Ай бұрын

I have no problem putting on tires with a single lever, but throw in an insert and that stuff becomes impossible for some reason

@Wimbelder

Ай бұрын

Even whit a insert I have no problem sometimes it is a little harder but overall no problem but er is a tool for to make your life easier BBB Cycling EasyTire

I'm game to try the intend forks, pls send demo units 😂

Look at the weights of all the upside down forks. They’re heavier than DH forks. Most pushing 3kg.

how did he not mention the shivers when he started talking inverted forks?

For the tire sealant question: I recently bodged a tubeless setup with a non-tubeless tire and rim by using that bucket technique. The tire was leaking air out of the sidewall and bead for about a day before it sealed. Just be patient with it and keep the tire level and rotate every so often. It also may have helped that I used double the recommended amount of sealant to ensure there was enough to get everywhere. For anyone curious: it’s a Fincci clincher tire from Amazon on a standard aluminum Specialized “tube only” rim (schreader valve hole).

#AskGMBNTech I have a 2016 canyon spectral al, and i'd like to upgrade to a coil shock. Do you have any recomendations?

After many a watched episodes, this one has me at, “if Owen’s flavor is not in the mix of GMBN, then my utmost loyalty to GMBN may be have to be held in a competitive state. But this one of Owen has me at suiting up in GMBN jersey to represent my loyalty!” You had to be there, “but if you really want the green bike, then Orbea have a way to pair with geometry. Sacrificing geometry and need vs favorite color: take home not really a tradeoff for ride safety.” 🤷🏻‍♂️

#AskGMBNTech half of the pistons on my brake caliper (sram code r) are pushed out more than the other side which makes the pads rub and make noise. I've tried lubing the pistons with dot fluid but that only made it switch side. Should I replace my brake caliper?

#askgmbn greetings the owens and the anns! So... I'm running an advent X (10s 11-48 range) with a 32t -3 mm offset sram xsync 2 chainring... I'm noticing the chain line lands straight in the 6-7th gear and when in 1st the chain line is way too crooked and indeed some creaking noises come from either the chainring or the cassette (im yet to truly tell on that), the noises decrease as i go up gears and from 5th the noise stops. I just recently changed chain and make sure the transmission is well tuned. Should I change to a -6 mm offset chainring? Rear axle is 148. I do plenty of flats and uphill. Bottom bracket area seems that would fit a -6 mm. Thanks!

Upside down forks for mountain bikes have been the future since way back in the past.

Owen, Fatbike, I run down to 4psi in the winter, tyre will not come off. You have to stand on it to force it off. Just my twopenneth. lol

Im glad you said upside down forks are the future as i run dvo emeralds on my dh bike thanks gmbn 💜💜

@motov8-garage832

Ай бұрын

Im not 😅 ive had upside down forks for 20 years on different MX bikes and fork seal leaks are a pain. Pain to service yourself and expensive to pay someone. Even doing it yourself the tools can get pricey..not to mention different speciality tools for different shocks. Sure either type of shock seal can leak..but when and upside down one does it pretty much needs immediate attention. It can leak more oil out there for damaging the shock. On a regular traditional mtn bike fork it can leak a little bit and you can usually ride all summer (if not years lol😅)..

Just use dishsoap if you want the tire to stick. but you must have it to get it of. And may dry your tires

I find it funny that this fork inversion is considered "upside down" when motorcycles and cars have used the inverted design for probably more than 80 years before bike designers made the first suspension bike fork and decided that inverting a proven design was the way to go.

@gpearce11

Ай бұрын

A couple of reasons. Firstly, USD forks have actually only existed for about 30 years, not 80, so there's decades more time and research spent on "traditional" forks. Secondly, and more importantly, USD forks are only really superior in two circumstances: travel over 250mm, and lateral stiffness. Hence why even on motorcycles you tend to only find USD forks on MX (for the travel) and sports bikes (for the braking stiffness). For bicycles, USD forks have some noticable disadvantages. The first is weight; for pretty much ever discipline except DH there a trade off between weight and performance that does not land in USC'S favour. The second is stiffness; on a 250+kg sports bike decelerating from 150-to-0 km/h, that lateral stiffness is a godsend, on a 20kg mtb trying to navigate roots on single track, the noticable decrease in torsional (i.e. turning) stiffness is a detriment. I definitely think USD dual-crown forks are awesome for freeride/DH, where the weight matters less, and the burlier overall nature of the fork helps with torsional stiffness (as does the burlier 110x20mm axle), but for single crown Trail/Enduro forks the cons tend to outweigh the pros.

@PuffinPass

Ай бұрын

@@gpearce11 I think you misread me, I said that the moto and auto fork design had been in place and used for the better part of 80+ years at the time bicycle suspension forks came along and redesigned the orientation. Not that bicycle suspension forks were 80 years in use.

@gpearce11

Ай бұрын

@PuffinPass And I think you misread me. The inverted fork design, commonly known as upside-down (USD) forks, has only been used by motorcycles since the early 1990s. The design literally didn't exist before then. MTB suspension designers didn't change anything; they just used the system that had been the standard for motorcycle forks for the previous 80 years. Not to mention, as I stated in my comment, with the exception of dirt bikes with 200+ mm forks and performance oriented road bikes (where inverted forks are now the norm), "traditional" forks (the style used in 99% of MTB suspension) are still overwhelmingly more common.

#AskGMBNTech As age progresses so does presbyopia and i can't read my head-unit anymore. Has anyone of you ever tried stick-on lenses with those cool-looking and expensive bike-glasses? Love the show, keep up the spirit!!

I think beadlock refers to the dirtbike version, not the rock crawler version. It does make sense if slipping beads are a problem for people but ive never had that jappen to me on a mtb

What about the Marzocchi Shiver? It came before the Dorado. And it worked great. But you didn't even mention it.

#askgmbntech I enjoy the efficiency of my short travel (130/110) bike. However, I bottom out the suspension 3+ times / ride doing ~4' drops and fairly basic jumps in 15 miles of riding. Is this frequency of bottoming out harmful to the bike? Does it require additional maintenance? If it is harmful, is increasing the pressure / decreasig sag a good option (I currently have ~25% sag)? Conversely, friends have longer travel bikes and virtually never bottom out. Does this mean they may be over-biked?

Push industries says they specifically address torsional stiffness with their USD fork

Why my gears on my bike wont GO up îs stays blocked on 6 and IT dosent go up on 1 or other number above 6

Its about time, motocross has had inverted forks for over 30 Years

The big problem with inverted forks is the hub. I have an RS-1 with an I9 hub, but I had to design and make a special axle interface.

#ASKGMBNTECH I know you probably shouldn't mix breaks and fluids but I recently got some magura mt7 pro breaks and I only have shimano mineral fluid, would it be ok if I use the shimano mineral fluid in magura breaks as shimano and magura use similar fluid? thanks

I got the idea of a beadlock wheel for DH after seeing a bike with the back tire and tire insert looking something like the Gordian knot

@kellyfrey2651

Ай бұрын

You may have seen the tire and insert all twisted up, but the important detail is what insert was being used. If you want bead lock, get Cushcore (or similar style insert). I've never heard of a tire with Cushcore even burping Definitely not going to come off the rim while riding unless the rim or tire is in pieces.

You forgot to mention Wren Sports as they have been doing inverted forks for 10 years and made to be serviced without the need of special tools and no use for oil.

if you want to lock the beads on ... use the glue they use for tubular tires and glue it to the rim ... tho it's gonna suck to remove

can you say beadlocks annnnndddd cush cores? That would be the equivalent of beadlocks for us hardcore off-roaders that take things way to far out here in the states. good sidewalls and good rims on ebikes are more than enough

#askgmbntech on my mondraker superfoxy carbon i have a headset cup wich opens the headtube angle by one degree, but the upper cup keeps on rotating from the correct orientation to make it work, how can i stop it?

Starts with Invertin the forks...then thry switch to a triple clamp, and then you'll just be a motor away from down hill motocross...

If you have too much travel, try maxing out with tokens.

#AskGMBNTech are we forever stuck at 200mm ? I would love to see a modern day Supermonster T

Looks like they would be great for rocks flying up and making dents in the tubes! Money for the company that’s makes them on tube replacement!

What's the problem with 180mm travel fork? Just match the sag and progression of desired (say, 150) travel and never use the last 30mm until the opportunity arises.

@hallstewart

Ай бұрын

Weird geometry and mad dynamics.

@feedbackzaloop

Ай бұрын

@@hallstewart not really: dynamics are adjusted, geo preserved as to manufacturer's intent. Only getting on a bike gets clumsy.

yes

#askgmbntech. Hey guys love the show and watch all the videos. How long do MTB tyres remain supple for before they should be replaced regardless of tread depth? I have a 2019 Giant Stance with the original Maxxis Ardent tyres on and at the weekend I had a pathetic slow speed crash in the mud but dislocated my shoulder and fractured my collar bone so now I’m not riding for ages. Bike just washed away in the mud and I had no control so I’m choosing to blame the tyres instead of myself! #BadWorkmenBlameTheirTools

Unsprung mass true but how much really? My 32 stepcast barely weighs anything to begin with.

Call Tubliss and get a bicycle prototype going.

Nice hat

Why can't i find any vids on servicing a basic Charger damper..Theyre 2.0 OR 2.1...WHAT ABOUT THE STANDARD ONE !!! came on a 2022 Lyrik fork

@greg1867

Ай бұрын

Then it's a 2.0

OK, so this whole talk about stiffness is getting old because it has its pros and it has its cons. In the early 90s frames on bikes were going to the ultra stiff but there was one brand that realized that stiff was great but there was a time when a hardtail would need some flex in order to track and keep the rider from getting the ever loading POPE FROM FROM GETTING KICKED OUT OF HIM. Thank you Salsa for putting out flexi cro-mo hardtails when every one wanted Cannondale bone jarring BBC(iff you dont know the acronym then leave it alone). Suspension is the same sort of animal, while you want the stiffness to track where you want to go, you also want the flexibility to go off line and recover and you want the flex to be able to recover from a mistake. Push has already eluded to that concept when they admitted that their fork was not the stiffest but there fork was stiff and COMPLIANT! Riders! REMEMBER!, that all of our tech comes from motocross. If you know this then you have to have a sense of history in the industry in order to move forward. I was Suzuki that realized that upside down forks had their advantages in 1994 but, that on lighter weight rigs like 125cc, they needed a little more flex in their forks because the bikes were not heavy enough to combat the tortional flex. They then went back to regular forks while getting rid of the massive under hang that would get caught in ruts. Through research they were able to go back to USD forks after about 5 years when they figured out were to make USD forks flex to their benefit. I love your guys info and cant wait until your next episode but I think you need some history lessons to fully nerd out on certain things. You all ROCK!

Why do all your channels avoid talking about Cannondale and its technology? I watch all the event presentations done on EMTB, GMBN and GMBN Tech and I never saw anything about Cannondale, except when Moterra SL showed up and all the other youtube groups were talking about it. This video talks about inverted fork, Cannondale has Lefty and has long been a successful technology. Am I wrong or am I missing something.

@janjacobsen4804

Ай бұрын

Wondering the same thing, Cannondale for some reason (no sponsoring?) newer is on GMBN's radar. Cannondale have made upside down forks like the Lefty for decades. On a personal note, the Lefty on my previous mtb is the best fork I have used

@CaridadeRui

Ай бұрын

​@@janjacobsen4804 you're probably right, if Cannondale was sponsoring this group, they were talking about the FlexPivot, Lefty, many other innovations and everything about this race winning brand. I love watching everything on these channels, but I'm sad that I never see them talking about this brand.

@heywood165

28 күн бұрын

Stop baiting Martyn! You know he’ll happily talk all things Cannondale for hours and… hours, he’s probably filming a 2 hour history of how important they were to the cycling industry to compliment the video Doddy did a couple of years ago. 😂

#ASKGMBNTECH Hello, I have a 2021 KTM Ultra Sport, with RockShox Judy Silver with 9mm QR axle. The right stanchion has vertical silver lines of missing black paint. Is it possible to put new uppers from different fork brands and models to my existing lowers, as an upgrade? I don't want to change the lowers, they look and work good, and I don't want to change the wheel to fit different axles.

When I was looking to get my first set of suspension forks. I was looking at a set of RockShox Judy SL forks with a wopping 63mm of travel. I was also looking a a set of inverted forks with 50mm of travel. I cannot remember the name of these forks. I do remember as they were pre disc brake forks. the cantilever bosses came through slots in the uppers. I did go for the Judys. Inverted forks are not new. They do make more sense not they can be built better and stronger.

@OwenBikeNerd

18 күн бұрын

Perhaps - those other forks were Halson Inversions?

The future… it’s simply good logical sense

Don't' some tire inserts "act" like a bead lock ???

#askgmbn are tanwall tires always more lightweight/poures or do some brands prefer the aesthetic. Looking for more of a rule of thumb and less gospel. To clarify I'm a huge fan of the tanwalls.

We don’t need bead locks on MTBs. Tubeless is plenty good.

Suppose it wouldn't be to difficult to 3D print a beadlock prototype for testing but then it would mount in to the hundreds of different wheels sets angles sizes widths 30mm plus for inside bead then to form something from carbon as alloy would just be to heavy n make the rim stiff as heck, it really wouldn't be worth the money invested into it you wouldn't known where to stop for mtb

Upside-down forks the future of MTB!!! Manitou be all like..... Uhh bro.... What you been smokin.....

#askgmbntech isn't a huge shame that EWS is slowly killing the 24h of Finale Ligure? Last year, the race was canceled because the world cup stage in Finale was on the weekend when they usually do the 24h, this year it's apparently going to be the same, I contacted the 'Finale Outdoor Region' and they said they are so busy with the EWS they don't know yet if the 24h will take place this year, what a shame! F... Enduro!

Most people are an odd bunch.....don't accept new or weird looking forks, even when they work better. I'm a linkage fork guy since early nineties

Stiction is static frictionn, not dynamic friction...

My Dorados are definitely nicer to ride than my 40's

get it paintted ifyou likre green]

Sigh. here we go again. If it were better, it would be the standard. Its likely found to not be the best design because if it were, Fox, RockShox would've adopted this many years ago.

@ROSE-by5su

Ай бұрын

Fox has a prototype USD fork I dont know what year it is. But Rulezman keep predicting the future of MTB

Upsodedowm forks are definitely the future, yes slightly for torsional flex but that help ls with grip over off chambers anyway, apart from the it's only positives

Maverick DUC32 anyone!!!!

@heywood165

28 күн бұрын

I still have the DC32 on an old Whyte 19 hardtail hanging in my mums garage. Can’t use it though, one of the bolts and clamps that hold the axle has cracked. Really hard to get spare parts for them in the UK these days!

@PhilipChannon

28 күн бұрын

@@heywood165 Still have a mk1 whyte 46, with them on. I get to ride the bike a few times a year and remember what a great bike it is.

@heywood165

28 күн бұрын

@@PhilipChannon That was a great looking bike. I know the design came from the Marin frames (Jon Whyte designed?) of that era, but the 46 had the cleaner lines and was less agricultural looking than the Marins. Top bike!

Up side down forks is nothing new 🤣

Why is he wearing 24 jackets??

@OwenBikeNerd

18 күн бұрын

It was cold - it was really out in the wilds not on set - but its was only 3 jackets!

Getting a bike because of the colour? Jeez. Really?

Lame. No new information. Just a nerd rehashing the same old stuff.

#AskGMBNTech Why do we use CO2 cartridges to fill our tyres, Since CO2 has a significantly higher solubility in rubber is it not detrimental to use it in tyres? Why not use HPA (High Pressure Air)? Do they use the CO2 cartridges because the manufacturing process is already there for air guns and its a cost thing?