What other components would you like to see Alex take apart and explain? Let us know in the comments below!

@neilaquino5294

3 жыл бұрын

STI shifters, how does mechanical and wireless work in depth

@PrzemyslawSliwinski

3 жыл бұрын

@Sweet TootherTo the last bit! But the hydraulic disc brake calipers disassembly & dissection will be interesting too.

@SpelemanAfPipa

3 жыл бұрын

#AskGCNTech Hi Alex! Is it possible to change the Shimano free hub to an XD free hub on Specialized SCS wheels?

@soulboken4670

3 жыл бұрын

Can you guys please make a video on how to silence your hub? Mine are wayyy too loud and it drives me nuts when I coast

It has always amazed me that those tiny pawls are able to withstand the sometimes enormous forces that are put through the pedals, especially when sprinting.

More of Alex doing anything tech please! he is more inspiring than any tech/science teacher i have ever had!

Soooo you found tool-free rear hub to show the steps, nice - but most of us need to deal with narrow locknuts needing cone spanners, awkward hex key sizes (11mm anyone?), proprietary freehub remover tools, hammering out the axle, etc... would be nice to see a complete strip down of one of the more complicated rear hubs, maybe a DT swiss one as they are so widely used, or a Novatec?

@saroshhavewala1489

3 жыл бұрын

I second this feedback as well as removal of the ratchet ring nut. Adding Fulcrum wheels to the list.

@georgehugh3455

3 жыл бұрын

Add the bearing check / REMOVAL / replacement. Would use a thinner grease like Slick Honey on the pawls - GP too viscous.

Anyone else notice there was a red spacer ring when he took the freehub body off but that same ring was laying on the table when he put it back on? 😂

@gcntech

3 жыл бұрын

Uh oh... 😂

@MTBinKY

3 жыл бұрын

Then a few seconds later it disappeared after the freehub was put on. Magic!

@GCNalex

3 жыл бұрын

Great spot, you are right, i managed to forget the spacer for a minute!! :-)

Nice no-nonsense video. Very natural delivery from Alex, once again. Thanks. 👍

Just a quick note at 6:28, for this flavor of freehub used on Hunt wheels, the red washer (on the table next to the endcaps) goes between the bearing and freehub. Without the washer, the freehub will not rotate freely.

Where do you install the angry bees?

@shellypalumbo5297

3 жыл бұрын

LOL!!

Thanks GCN! i finally know what's broken with my bike and where.. sure could use that bike maintenance book you made hehe 😄😅😉

My advice for the grease in freehubs is to apply winch grease (used on sailing yachts) that is more waterproof than standard types of grease. Winch grease, like from the brand Harken, can withstand and is designed for more agressive environments.

@peglor

3 жыл бұрын

A hub with decent seals to begin with is an even better idea. You're solving the wrong problem changing your grease to try and solve a sealing issue.

@janwillemkuilenburg7561

3 жыл бұрын

@@peglor That’s right. My current (rather cheap) wheelset has issues like bad sealing in the rear hub. But I want to avoid buying new parts as much as possible. Apart from that, more water resistant grease is not a bad idea in parts that are sprayed a lot, like the lower bearing in the steerer tube for example.

Always on time for a tune up!

great vid - thank you 👍🏻👍🏼👍🏽👍🏾👍🏿

un-related comment, but what happened to the long awaited "GCN-BMX" channel???!!! BMX is after all how we got to fall in love with bicycling!!! Seems fitting to pay "homage" to that little bike we wish to ride agian!

Good clear photography, though I would have liked to see a real strip down.

No mention of Shimano microspline, which allows Shimano cassettes to have 10 tooth top gears? I'm not sure there are road bike drivetrain options for it yet, but it's been available for MTB's for well over 2 years at this stage. If you want to list all the popular freehub standards it is conspicuous by its absence.

Excellent explanation. How about DT Swiss star ratchet free hub👍

That was very interesting to watch! I have got a faulty free hub on my new Stumpjumper which is really disappointing!

#ASKGCNTECH Can you please explain more about engagement for road application? For MTB general speaking the higher the better, but what about roadies? Any advantage when upgrading lets say from 18T to 36T? Thanks.

Hi Alex, Hope you are ok. Could you explain in detail the difference between the DT Swish 240 hub and the new 180 hub. I know the 240's ratchet is interchangeable. Is the 180's hub interchangeable as well? Cheers.

Hey 👋 I just wanted to know if you guys have announced the winners of the the signed yellow jersey and met rivale helmet if so can you tell me which video on which of your channels.Thank you

So I’m having an issue with a brand new hub. When I have the rear wheel out of the frame the free hub will coast and engage freely. As soon as I tighten it in the frame it no longer coasts and throws the chain off the top of the drive train. Because of my dropout spacing (141 boost QR) combined with my rims spoke count (36 hole) I had to somewhat blend different standards, which admittedly may or may not be a great thing to do. I am running a koozer xm 490, 36 hole hub that is a 135 mm non boost QR, set up with endcaps that make it a 142mm through axle with an hg free hub body. To use this set up in my 141QR boost spacing, I am using a through axle adapter that transitions from an external diameter of 12mm which fits the endcaps, to a 9/10mm end that’s fits the dropouts. Holding this in place is my stock QR 5mm axle strung through the adapter and frame. For some reason it will not free coast. The stock bike is a 2020 Schwinn Axum. Any feedback I’ll take.

Simple things are always the best.

I’d be interested in how you remove a 1970 campag freewheel 😁

Any experience with Hunt H_ceramic hub body like this one in video? It is alloy body but its promoted as hard wearing - some hard coating on it - has anybody removed cassete from it after some time, are there strong bite marks or is it really better than normal alloy one?

#askgcntech How about a video on the differences between the freewheels and cassettes and the positives and negatives of both?

If I want to switch from Shimano 11 speed drivetrain to Sram XDR or Campagnolo, do I simply change the freehub body or do I need an entire new hub??

#askgcntech Can you guys show replacing just the crank arms? I am particularly looking at Sram Force crankset. I would like to experiment with shorter crank arms, but I am not finding any how to videos specifically to remove just the crank arms. Is it even possible on the Scram Force drivetrain?

Nice video although you took the easy option with a freehub that literally pulled apart. Many ‘everyday’ hubs are fixed with an internal Allen key and it would have been a bit more useful to show how to dismantle these as they’re more common.

I use chain lube on my old feehub, it's almost silent.

Don’t most freehub manufactures recommend a specific freehub grease which is slightly lighter than normal?

@kidShibuya

3 жыл бұрын

The DT Swiss special grease is quite thick

@GCN Tech - love your channel, great work. So an informed guess, the free hub causes the nice ‘buzz’ sound when free wheeling? Why is it louder on some bike more than others? A personal observation is that it seems the more expensive the bike, the louder the ‘buzz’ or am I imagining it?

@iancollins6104

3 жыл бұрын

The free hub noise echos more within a carbon frame. Plus more expensive usually can mean more paws in the hub, so more noise. Cheers

@janwillemkuilenburg7561

3 жыл бұрын

The quantity and type of grease in the freehub defines the loudness of hub sound. The more grease, the more muffled.

#Ask GCN Tech. I have a set of zipp 303s thay are great wheels and have been loving them for the past 1000 miles but now for some reason there is no free hub sound its near silent? Please could you help explain why this is thanks Chris.

You forgot about Microspline

#askgcntech I’ve needed to replace two free hubs in the the last 3 years (approx 7000km of riding). What am I doing wrong to wear these out so fast? (Yes I like to stomp it)

Nice job! Can you buy a freeHUB wheel for bikes with 126mm dropouts? I's like to update my vintage steel road bike from freeWHEEL to freeHUB technology, but I've never seen a 126mm freeHUB wheel.

@peglor

3 жыл бұрын

The usual solution to this is, rather than trying to get a modern freehub onto an old hub width, is to 'cold set' the frame, which is literally to bend the dropouts further apart to take a standard 130 mm road hub. There's so little difference that most frames, especially vintage steel ones, will take the wider hub without the need to set the frame at all, but it will be a pain to get the wheel in and out. Try a proper old school bike shop or a frame builder and you'll find people who can do it for you. In frame building this flexing process is how they deal with any small misalignments that build up during welding too, so it will be completely familiar to frame builders.

@MrLuigi-oi7gm

3 жыл бұрын

@@peglor Hi peglor, Thank you so much for the kindness of your reply. That meant a lot to me and your suggestion sounds like a very attractive option. Cheers, Luigi

Free-coaster Vs. Free-wheel Vs. Fix-gear!?!? Free-coaster allows you to ride backwards without back-pedalling, while a free-wheel cassette you will have to back-pedal to ride backwards. A fix-gear can be pedaled in both directions, that is forward and backwards.

What is the deal with the loud free hub (like in Ollie’s new Canyon ultimate sound check test)? Why are the higher end wheel sets louder? #askgcntech

@peglor

3 жыл бұрын

Marketing wankers is the short answer unfortunately :-(.

It’s not an axle - it’s a spindle. Axles spin inside a stationary bearing. A spindle remains stationary while the bearing spins around it. Nit picky I know...;)

The only problem with freewheels was the axle on the rear wheel bending or snapping. It was a universal, wide spread problem.

@peglor

3 жыл бұрын

That wasn't the only problem - most of them wouldn't run true, so on a modern 10+ gear drivetrain there would be enough wobble to create noise at the very least and probably ghost shifting. They were also a pain to remove if the rider was heavy or strong or ran lowish gears, or had a rim failure that left you without anything to lever off to unscrew the freewheel, forcing you to rebuild the wheel with the spokes it came with to unscrew the freewheel, and then dismantle the wheel again to replace the spokes and do a proper rebuild. They weighed considerably more too as they had to use steel parts to support the sprockets, bearings and freewheel mechanism. The design could be modernised to fix some of these issues, but the cantilevered axle and threaded connection to the hub were fundamentally bad design decisions.

@georgehugh3455

3 жыл бұрын

@@peglor Thanks for the more comprehensive (and very specific) list. You seem a little traumatized, lol ;-)

Does no one call it a block anymore?

@peglor

3 жыл бұрын

The screw on freewheel is what I'd call a block. Cassettes are the sprocket sets that go on a freehub spline.

Why do some click louder than others?

@YuriThorpe

3 жыл бұрын

Typically higher engagement hubs will make a louder noise.

@davidhellyer5353

3 жыл бұрын

Thick or thin grease or just oil makes a big difference in noise too

#askgcntech Why are some free hubs loud and some quiet.

@tobiasvonseydlitz3852

3 жыл бұрын

It's the same as different exhausts in cars for nice sound ;D

@shellypalumbo5297

3 жыл бұрын

Thank you, however, I was curious as to what exactly causes the loud clicking on some hubs. I just switched to a shimano freehub on my trekking bike and this is my first experience with a dead silent hub. Thank you again!!😊

@tobiasvonseydlitz3852

3 жыл бұрын

@@shellypalumbo5297 haha well I really am no expert but I'm sure it's just different designs of the shape, size, amount, material and force of the spring loading of the components inside the hub that were shown in the video. Different ways to achieve the same thing. Expensive ones often seem to be louder where's why I noted the analogy of pimping a car's exhaust etc. Perhaps the gcn team will pick up on your question and give us more in depth explanation/comparison/technical information or even more history on it😊👍🏻

@shellypalumbo5297

3 жыл бұрын

Thanks Tobias!! I guess it doesn’t really matter, however, I do miss that cool clicking sound. LOL😊

#askgcntech I'm buying some chinese carbon wheels for a chinese carbon build and there are many hubs offered. Are sram and shimano gears both ok on the same hub or will my hub selection fix my gear choice? centerlock vs 6bolt? Is dtswiss 350 really £100 better then novatech? Surely steel is steel. How the hell can I tell if the hub is qr or thru axle like my frame? eg www.aliexpress.com/item/4001148296140.html?spm=a2g0s.8937460.0.0.3e812e0edjScha

Fixie Dont have such weaknesses

@core2zero

3 жыл бұрын

good luck climbing

Mate that's XDR, not XD 😉

Another unrelated comment, has anyone seen "Fixed-gear Ballet??? Please Goole it, you will be totally amazed!!! It's a UCI sanctioned sport!!

@peglor

3 жыл бұрын

It's unicycling with handlebars - no question the top riders are highly skilled, but once you realise that it's a fixed gear bike with a 1:1 ratio, their ability to stay up on the back wheel forever is a lot less magical.

Hello there second comment

@jeremiahchan8820

3 жыл бұрын

Maybe first

sorry but never use grease inside rear hub but special oil. like a transmission oil. Otherwise you risk just hanging the pawls incorrectly and breaking everything.Or you have no power in legs.

@derekhobbs1102

3 жыл бұрын

I use chain lube in mine.

@peglor

3 жыл бұрын

Depends on the particular hub and the conditions you're using it in. Hope's work perfectly well with fairly thick grease in them. Chris kings with the same grease probably wont get freewheel engagement at all. The wetter the conditions you use the hub in the thicker the grease you should use is a good guideline, though if the temperatures are extremely low, the grease being too thick at the really low temperatures might be an issue.

Um. Would be more helpful if you showed how to do the most difficult hubs, not the easy hubs.

what s a freehub ,, is a hub you get for free ,, h ah

Am I the only person who thought he was speaking Latin? Really quickly.

Very nice look plss shout out mee

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