Questions tagged [hub]

Concerning the parts and mechanism of bike gearing, both internal and external. Multi-speed, single-speed, fixed and freewheel.

Filter by
Sorted by
Tagged with
2
votes
0answers
65 views

What does the brake adjuster nut do? Sturmey Archer S2C coaster brake hub

Looking at the schematics of the sturmey archer S2C hub I noticed this part: 2 HMN425 Brake Adjuster Nut (Xylan) And I was wondering, what does it exactly adjust? Does it adjust the brake ...
2
votes
1answer
179 views

I can't extract sealed bearings out of the wheel

I face the problem again of extracting the bearings, this time out of the wheel of my Giant XTC Advanced 29” 1.5 2017, Giant wheel system, hub OEM manufactured by Formula. Once removed caps and ...
2
votes
1answer
4k views

Hub rebuild - cone dust cap conflict, hub integrated vs pressed on cone?

I had to rebuilt the rear Joytech hub on my 2008(ish) Schwinn High Timber after I broke the axle: My hubs have a integrated dust cover which consists of a rubber diaphragm that is pressed into the ...
2
votes
1answer
2k views

Identifying Rear Axle Size

I've got a bent QR rear axle and am looking for a replacement. Seems that these come in 9.5 and 10 mm sizes with a couple of different threadings. When I measure the OD of the threads I get around 9.8 ...
1
vote
3answers
606 views

Can any dynamo hub get the electricity rotating with the spokes?

I want to make wheel LEDs powered by a dynamo hub. I was wondering if that's even possible. Any ideas or models?
1
vote
4answers
1k views

Big tires are rubbing in certain conditions so how can I fix my rear wheel play issues?

I have a 2007 Tarmac Expert Double with a Mavic Kysrium Equipe rim spoked to a Mavic Kysrium Equipe, 24 hole, Mavic QR rear hub. I recently upgraded to 28mm tires from 25mm and I had the rear wheel ...
1
vote
3answers
178 views

Reassembling rear wheel hub

I have a ten year old decathlon cheapo bike and I wanted to take out the axle out of the rear wheel to see if I could replace it with a quick release mechanism and also learn a bit about how it works (...
1
vote
1answer
262 views

Are thru-axles generally hollow or solid?

Need to know if these thru axles (of any size) have an internal diameter or are completely solid. How common is each type?
1
vote
4answers
445 views

Use Brompton BWR 3-speed hub to create a full 700c wheel?

I have been looking at getting an internal gear hub wheel for my commuter. I currently ride a fixie and I find myself wanting a lower gear at stop lights and a higher gear in straight aways. Basically ...
1
vote
2answers
744 views

Is centering axle by eye good enough?

I took apart my shimano m770 front and rear hubs, and removed both (!!) cones on each axle. When reassembling everything I ran into the issue of re-centering the axles (so that the rims run in the ...
1
vote
1answer
649 views

Hubs compatible with 7 speed cassette

I have one Gt aggressor 2.0 2014 and want to make some upgrade. So someone told me to buy a new hub to use with a 9 speed cassette. I want to buy the hub but later the 9v cassette, so has any hub can ...
1
vote
1answer
5k views

Rear Wheel Jamming on kids bike after Training Wheels

We got our son a Hyper Metro bicycle from walmart for Christmas and I assembled it with no problem. We also go training wheels for it and when I installed them, the issues began. The rear wheel will ...
1
vote
2answers
1k views

How do I take apart the axle and freehub on this bike

I have a long wheelbase recumbent built by Sun Bicycles. There are some complications with finding out what kinds of components went into the interior of the bike. Brakes and shifters have their ...
1
vote
1answer
108 views

What is the difference between hub-cone type rear hubs?

Assume a rear hub that consist of an axle, hub, cones, loose bearings, lock-nut, with hub space = 135mm, with bolt-on disc brake Example hubs Hub 1: Shimano XT FH-M756 Cost Eur40 Hub 2: Cost Eur23 ...
1
vote
2answers
361 views

RPM regulation of direct hub motors

I found this bike push-trailer. Because the trailer project is open-source I discovered that the used hub motor is MUXUS XF40 (specs here) In many places on the internet a learned that if such ...
1
vote
2answers
153 views

Hub sticking - friction

Bike I got used and happy with the price for frame alone but I don't know the history. Kris King hub with significant drag. With cassette off and just a rim if spin it hard I get 5 revolutions. I ...
1
vote
2answers
187 views

Is this hub shot?

While inspecting a used road bike ($200) I pulled the rear wheel off to check the hub. I twisted the axle to see if there was any damage. It wasn't at all difficult to turn it, but there was a bit of ...
1
vote
3answers
3k views

My back wheel isn't connected to the gears

I have an old bike it says Via Montega on the body if that helps. I was riding it earlier when the pedaling stopped resulting in forward motion. I thought the chain might have come loose but it is ...
1
vote
3answers
389 views

One vs Two Piece Axle?

After finding out my bike has a road rear (130 mm) & disc brakes, it's been difficult to source rear hubs. Cyclocross allows disc brakes, and more commuter/cx frames are appearing but all seem to ...
1
vote
1answer
58 views

Changing Scott Scale 960 2019/2020 rear hub to thru-axle?

I'm interested to buy Scott Scale 960, but I would like to change rear hub from QR to 10 or 12mm thru-axle. Is it possible with or without changing rear hub? What kind of hub would it fit in case it ...
1
vote
1answer
74 views

Diagnosing hub wobble (Shimano Nexus)

I have a Babboe City cargo bike with a Shimano Nexus 7 rear hub. Just coming into home on my last ride there was a bit of noise from the drivetrain and, on closer inspection, some other symptoms. The ...
1
vote
2answers
489 views

Freehub Seal Orientation “Axis Sport Disc”

I've serviced my freehub, and on putting it back together am unsure of the correct orientation of the seal between the hub body and the freehub. I have a 2018 Specialized Diverge E5 Sport, with a ...
1
vote
2answers
171 views

Coaster brake: concave sprocket orientation

The sprocket for my coaster brake hub is shaped concavely in the middle, it is not symmetrical. I've seen some people on Youtube who had it mounted on the hub facing inward, and others facing outward. ...
1
vote
1answer
1k views

Play in rear wheel hub

I've got some play in the rear wheel hub, which makes the wheel move sideways a bit. Here's a video: https://drive.google.com/open?id=1EpXNE9YYdzwxotgWbCeWi2DM9FOlmY7A How can I fix this? Do I have ...
1
vote
2answers
203 views

Pedal and Cassette Shake

I really need your suggestions. The situation is bellow: I have bought brand new one "Specialized Rockhopper Sport 29" 2017 satin navy-hyper" in a official dealer of Specialized. When i arrived at ...
1
vote
2answers
2k views

15T Freewheel Which Works on Flip Flop Hub

I am building a Single Speed Freewheel and I read somewhere that manufactures don't make 15T freewheels that fit on a Flip Flop hub; only 16t and bigger. However, I would like a gain ratio above 3 and ...
1
vote
3answers
1k views

Rear hub bearing replacement

Bike noob here. I have a Quando rear hub with a busted cap? By cap I mean the cap covering the bearings beneath the cone. This cap is separate from the bearings. It hold the balls in place. Is it ...
1
vote
1answer
2k views

What is measured by hub size?

When they say 135mm hub I don't particularly understand. What are you measuring? The radius? They say that a particular hub will be short for fitting gears. I say if I change rear wheel completely, ...
1
vote
1answer
816 views

SRAM Cassette on Campy Wheels

I wrecked my current wheel set in a crash and am considering purchasing a set of Campy Hyperons from a friend. AFAIK the wheels are stock and haven't been tweaked in any way. I would like to know if ...
1
vote
2answers
909 views

Singlespeed Hub - Rear Axle Swap

I have two sets of wheels, both laced to surly singlespeed hubs (the older "new" hubs, not the "ultra new" hubs which seem to make this process much easier). Anyway the wheelset I like better has a ...
1
vote
1answer
140 views

Front axle cone replacement - sizing

So I am trying to replace my pitted front axle cones, but struggling to find the parts of the right size. My axle diameter is 9.4mm on the thread and 8.8mm on the smooth part, and respectively the ...
1
vote
1answer
65 views

SunRingle ratchet rings

I have a used Stan's NoTubes Neo hub and would like to replace the ratchet ring and pawls. These were once available but are now out of stock everywhere. Since these hubs, like most hubs these days, ...
1
vote
1answer
115 views

Vintage Sealed Hub Maintenance Questions

Trying to do hub service for the first time... I have removed the locknuts on both sides. I'm checking to see if I should be able to hammer the axle out because it's firm. Is there supposed to be a ...
1
vote
2answers
341 views

What road hubs models or manufacturers use replaceable cartridge/sealed bearings? [closed]

whilst opinions differ on which is better, cartridge bearings (aka sealed bearings) vs loose-ball bearings. I'm attracted cartridge bearings based hubs, because of the prospect of just periodically ...
1
vote
1answer
226 views

Fixed/free hub for 12mm TA frame?

I'm building an SSCX bike around a Brodie Romax SS frame which uses a 135x12mm thru-axle at the rear. I was hoping to be able to use a flip-flop hub so that I can run it SS for 'cross and fixed for ...
1
vote
1answer
11k views

Servicing DT Swiss 240 FRONT hub

this is my first post here. How can I service a DT swiss 240 front hub, as in remove the adapter ( end cap ) to get to the insides? Do i need a special tool? Does it even need servicing? There is ...
1
vote
1answer
724 views

How to fit 10 speed cassette on this hub

I bought a pair of Mach 1 wheels from PlanetX that said the hub was compatible with Shimano 8/9/10 speed. When I tried to install my 10 speed Tiagra 4700 cassette it doesn't seem to go down far enough ...
1
vote
2answers
855 views

What would I search for to find bike hubs that attach on only one side like found on tadpole recumbent

What is the name of the hubs used on recumbent tadpole trikes. Those tricycles that have two front wheels and a conventional rear wheel
1
vote
2answers
16k views

Why does my chain slip off the chainring when cruising or back pedalling?

My bike is a little more then a year old (although I do put a lot of miles on it, about 12 miles a day), this problem seems to have started about a week ago. It's a 7 speed Avilon Next (a cheap brand ...
1
vote
1answer
1k views

Could I have damaged the bearings/cone when replacing a tire? Front wheel wobbles side to side

Last evening I installed new tires on my bicycle. The front wheel now wobbles side to side. I notice a small movement about 1-2 mm near the hub/axle cone. I checked to see if the skewer is all the ...
1
vote
1answer
65 views

Ultegra 6800 front hub plastic cover loose

The plastic cover on the right side of my Ultegra 6800 front hub (red circle in the photo) is loose and rotates freely independent of the hub. Is it normal ? If not how can I clamp it back?
1
vote
1answer
37 views

Hub compatibility for Felt Nine 60 2017

I have Felt MTB Nine 60 2017 and I want to change my rear hub but don't know how to look for compatibility. It says 6 bolt QR x 135.
1
vote
1answer
97 views

Is it worth swapping two front-wheel hubs?

I have an old Bontrager Select rim with cartridge bearings and a newer Syncros Race 27 with loose ball bearings. Both are 20 spoke, would it be worth it to swap the hubs? Or would it even be possible?...
1
vote
1answer
630 views

Front hub not centered in dropouts

Is there an adjustment which affects the amount of axle on each side of a front hub? I have one wheel set, in which the front wheel does not center in the fork. If I switch to another front wheel, ...
1
vote
2answers
4k views

Shimano 8/9/10 speed freehub conversion to 11 speed does not appear possible due to changed spline pattern

After remaining unchanged (with a few exceptions like FH-7801) for nearly 20 years the Shimano freehub body spline mount has changed along with the width. I had hoped I could refit a 8/9/10 speed ...
1
vote
1answer
2k views

Shimano Claris FH-2400 Rear Hub Dimensions

I would like to purchase this hub, rim and suitable spokes, but I am not able to find dimensions of this hub necessary to calculate spoke size. I have checked usual places where such information can ...
1
vote
2answers
131 views

Loose Hub on front wheel

Front wheel hub is loose and the whole thing wobbles a bit. Im a fan of dubstep but there's a little too much wubwub in my hub. How do I tighten that bad boy up properly? Thanks!
1
vote
1answer
687 views

Wobbling on Shimano Nexus 8

My rear wheel has a Shimano nexus 8 internal gear shift. i noticed some wobbling on the axis recently. that means there is a little bit of play when i try to twist the axis sideways respective to the ...
1
vote
1answer
1k views

Adaptor for 20mm Shimano saint 810 hub to 15mm?

Currently I'm running a Shimano Saint 810 front hub and fork Lyrik coil 20mm. I've a good offer on a brand new Manitou Mattoc 2014. But this fork uses 15mm axle. I'm looking for an adapter to be able ...
1
vote
2answers
6k views

What causes a wheel to seize?

My rear fixed-gear wheel seized up yesterday on my commute home. I suspect it's the result of my bone-headed adjustment after replacing a broken locknut on the axle (I may not have put the new ...

1
3 4
5
6 7