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Questions tagged [hub]

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

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SRAM MTH 716/746 front/rear wheel hub service manual

I am looking for the service manual for the SRAM MTH 716/746 front/rear wheel hubs. SRAM seems to have removed them from their site. Anyone have a link? Also, I've looked through YouTube and can't ...
Steve's user avatar
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Rear wheel resistance but moves freely when not biking?

Hi all I'm at a bit of loss trying to trouble shoot my Surly Long Haul Trucker.I recently bought it used about 3 months ago and then had a new chain and cassette installed. Commuting back from work ...
Adrian's user avatar
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3 votes
2 answers
407 views

I had to tap out a hub bearing to replace a worn Formula freehub body. Did I ruin my hub by getting the bearing angled?

This needs some explanation. I have a Cannondale CAAD13 road bike, which has only 2000 km on it. Unfortunately, the freehub already developed a lot of play and noise. The bike came with a Formula ...
conste's user avatar
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1 vote
1 answer
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Bearing size for front hub

This is my first time posting, so apologies if I did something incorrectly. I recently bought a used Marin Bobcat Trail 3 mountain bike and noticed the front hub was really tight. After removing the ...
Matt's user avatar
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5 votes
1 answer
844 views

Is a new Tourney rear hub better than a 15 year old Deore hub?

I have an old MTB with Deore M530 rear hub. I found out its axle has a slight bend thanks to the help of the members here. There is also wear on one of the cones. I am going to order an axle set (axle ...
Ender's user avatar
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6 votes
0 answers
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What is forward drag on a coaster brake

I have a single-gear coaster brake bicycle that needed fixing. I would have to pedal real hard to get it to go and backpedal a block in advance for bike to stop. Very spongy brakes. Well I took brake ...
Alison's user avatar
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5 votes
2 answers
87 views

How to adjust rear axle width?

I fixed a puncture on this kid's bike (not mine) but when I went to put the wheel back in I noticed the axle is narrower than the dropouts & the dropout has been significantly bent in before to ...
lost's user avatar
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2 votes
1 answer
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Can you ID this Shimano freehub body?

My LBS can't figure it out and my googling brought up nothing. The hub itself is Shimano model FH-T3000 It's from a 3yr old, 8spd, $100 wheel.
Jim W's user avatar
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7 votes
1 answer
604 views

When replacing balls in Shimano cup and cone bearings, is part number relevant or is size the only thing that matters?

Does the shimano part number matter when replacing the balls in cup/cone hubs? The exact part number is unavailable, and the available shimano bearing of right size does not list my hub as compatible. ...
WornChain's user avatar
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5 votes
2 answers
695 views

I need help fixing my axle

Here is my bike: https://www.trekbikes.com/gb/en_GB/bikes/hybrid-bikes/fitness-bikes/fx/fx-1-disc/p/27987/ What appears to have happened is that the axle through my hub has sheared off due to some ...
Joe Hearsey's user avatar
6 votes
2 answers
91 views

Analog of "pitch circle" for straight-pull hubs?

If I want to build a wheel with my selected rim and hub, I can calculate the spoke length given the rim ERD and a few hub dimensions, most important of them being pitch circle diameter. For a straight-...
Konstantin Shemyak's user avatar
4 votes
1 answer
196 views

Keep incorrect lacing (spoke heads in/out) or reseat spokes on hub flange?

Though likely not unanimously agreed on, it seems trailing spokes should be heads out. After breaking a hub flange where the trailing heads were heads in, I'm a little spooked seeing my front hub's ...
daddyblondlegs's user avatar
4 votes
1 answer
223 views

CNC'ing Strong Hub Shell (Kindernay Swap Cage)

The Kindernay Swap Cage is a removeable hub shell that is a bit delicate for loaded touring. The HD (Heavy Duty) Swap Cage never made it to market. I'd like to make one that's near indestructable. It ...
daddyblondlegs's user avatar
8 votes
2 answers
2k views

Catastrophic hub failure, can the freewheel and rim be saved?

I am not experienced working on wheel hubs/cassettes or anything related to them. I am also not great at English, so please excuse any dumb questions I might ask. The obvious problem is that my rear ...
hansenC's user avatar
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3 votes
1 answer
86 views

How to disassemble rear wheel hub with no lock nut?

Please see pictures. My rear wheel has a Deda Elementi hub which has a Thru axle. I have removed my 11-speed cassette and disc rotor. There is no lock nut on the non-drive side. There only appears to ...
TheAlpCyclist's user avatar
3 votes
1 answer
1k views

Freehub body fell off. Now it's back on, but big freewheel drag

Update: I managed to slide the freehub + cassette back onto the hub - took a bit of persuasion, but easy once I had the technique. But the freehub now has a significant drag - when I rotate the pedals ...
HTTP 410's user avatar
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1 answer
428 views

15mm thru-axle hub on 12mm axle: sleeve adapter vs endcaps

Background: I have a frameset with 12mm thru-axles front and rear (non-boost). I think bikes like that are now very common in road/gravel realm. I am building myself a second pair of wheels at the ...
Art Gertner's user avatar
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New enviolo hub shift is locked

My shift mechanism is locked on a new hub. Will not shift at all. Still in max overdrive. Don't want to force it.
Cascaderich's user avatar
2 votes
1 answer
200 views

Hub FTF and Offset

I have a fron disk hub which has FTF 62mm, offset 7.7 (Novatec d791sb) According to this: Wl = (F.T.F/2 + Offset) = 38.7mm Wr = (F.T.F/2 - Offset) = 23.3mm But when I look at the picture, it seems ...
Toniq's user avatar
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1 vote
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340 views

Which tool is required to remove an 8 notch freewheel from a single-speed flip-flop hub?

I have a single speed freewheel on a flip-flop hub that I would like to remove to service the hub. It has 8 notches, which tool do I need to remove the freewheel? Here is a picture of it on the bike: ...
Mark Aroni's user avatar
4 votes
1 answer
326 views

Tightening drive side bolt for Mavic Cosmic Elite rear wheel

I have a question about this Mavic Cosmic rear wheel. I wanted to remove some play from it, so I took the rear wheel apart for that purpose. Now, when I'm putting it back together, I notice that I'm ...
zwep's user avatar
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1 vote
1 answer
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Rear hub boot/seal rotates?

I've had my bike since new in 1993. I rebuild the hub bearings every so many years. I recently rebuilt the rear after letting it go for too many years and had a nagging question: (Reference the ...
Mike's user avatar
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1 vote
1 answer
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What do I need to adapt a Hope Pro 4 to a Boost 141 frame?

I have a 2021 Trek Roscoe 7 and I’m looking to buy a rear Hope Pro 4 hub. My Trek comes stock with a Formula DC-2241 rear hub, alloy, 6 bolt, Shimano 8/9/10 freehub, Boost141, 5mm QR. The rims are ...
Daniel's user avatar
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6 votes
1 answer
2k views

Hyperglide vs HG10/HG11/HG12

What is the difference between "Hyperglide" cassette and HG10/HG11/HG12 cassette? I thought the later are also of "hyperglide" kind. Is the freehub body for the former cassettes ...
Ecir Hana's user avatar
  • 291
5 votes
2 answers
1k views

Hub spacer behind 105 cassette

While removing Shimano 105 cassette, I noticed a spacer sitting on the hub between the largest sprocket and the place where spokes attach to the hub (not sure how is it called). I checked the 105 ...
Ecir Hana's user avatar
  • 291
4 votes
0 answers
124 views

Scott 965 hub Problem

Good afternoon, I recently bought a Scott 965, I chose this bike for the beauty of it and the equipment it came with, I wanted to change to a bike with sealed bearings and leave the bearings Sphere ...
Ruben Miguel Silva's user avatar
0 votes
1 answer
24 views

Trek shift three rear 8 speed deraileur, in smallest cog the drive train seems to slip and re-engage in under a quarter turn?

Recently I have a new shifter on handlebar, new cable, had the chain replaced and a new cassette and a new rear deraileur. Wondering a about the Hub in the wheel?
hub's user avatar
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1 answer
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Cone and lock nut adjustment on the drive side is impossible on my back wheel

The right side cone is covered with a cup style spacer and the cone wrench cannot be used to fully tighten the lock nut. I think this metal cup serves as some kind of seal. How can I retighten cone ...
Pierre Labrie's user avatar
13 votes
2 answers
3k views

Rear wheels are dished. Why not "dish" the frame instead?

Most rear wheels are dished to make room for the cassette. They have the drive side spokes comming into the hub more perpendicularly, which weakens the wheel against lateral forces in that direction. ...
Robert's user avatar
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0 votes
1 answer
444 views

135mm Hub in 141mm Boost QR

I may be barking up the wrong tree, but I have the following project in mind. I'm looking to buy a bike (Giant Fathom E+EX) that is listed as having 141 QR Boost drop-outs in the rear. I want to ...
Pete's user avatar
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4 votes
1 answer
192 views

What part of the hub is referenced when speaking of hub length?

In the attached image, you can see a measure of 32 and 36 mm being mentioned for the length of a bike hub. What are these measurements? I have searched and found that axle, flange or even spoke holes ...
Federico's user avatar
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3 votes
2 answers
99 views

Help needed: identify hubs TRW 9000

I bought this old randoneering frame It came with TRW 9000 hubs. I've done lots of web searches but couldn't find anything. Has anyone out there seen them before or know anything about them? Cheers, ...
Cormac's user avatar
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2 votes
1 answer
76 views

What if use Effigear gear box and Alfine 11 gear hub together?

What if we use two types of planetary gear hubs together? Like Effigear and Shimano Alfine 11. First on the pedals and second on the back wheel? Will it increase number of transmissions? Or increase ...
Євген Волощенко's user avatar
1 vote
0 answers
219 views

Missing end cap

I bought a used bike, and I didn't notice the end caps were missing from the front wheel. I don't know the model or the manufacturer of the hub, there are no markings. It is a 12x100 thru axle fork ...
Rasped's user avatar
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3 votes
2 answers
361 views

15mm hub on 12mm fork

I need to get a 15mm hub without end caps to fit a 12mm fork whose dropouts look like this (note that the black part has a lip): When my SON dynamo's bearings went out on a cycling tour here in ...
daddyblondlegs's user avatar
2 votes
1 answer
151 views

Weird behaviour of rear hub thru axle

recently my rear wheel started wobbling so I wanted to check its rear hub, bearing and axle. I have a Shimano HB-RS470 hub which is a thru axle hub, and it look exactlly like the one in the picture ...
Wojtek W's user avatar
3 votes
4 answers
3k views

12×142 wheels in 10×135 frame?

let me first say that I don't have a lot of experience on this topic so my questions will basically be two-fold: First ask if my observations and assumptions about the gear I have is correct and then ...
tor's user avatar
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4 votes
1 answer
1k views

Safely removing DT swiss bearings to re-use them

I have a DT Swiss 350 rear hub and the axle does not rotate freely. Rotation is smooth (not rough) but with noticeable amount of resistance. I have to pinch the axle hard with my fingers to even ...
Art Gertner's user avatar
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3 votes
1 answer
125 views

Accomodating new wheel on old bicycle

I have a bicycle from the 1980s. Steel front fork. I am replacing the 27 1/4 wheels with 700cc. The new front wheel hub is 96mm wide between outer face of the bearing housings. The front fork has an ...
caloundra's user avatar
0 votes
2 answers
378 views

Wheel hub adjustment

My rear wheel was wobbly so I tightened the hub bearing which removed the play but caused the wheel to stop rotating freely. Stupid question I suppose, but is the adjustment just a matter of trial ...
Keith Bruford Bennett's user avatar
2 votes
1 answer
84 views

Rear 146cm hub axle (quick release) for a frame with 130mm Over Locknut dimension?

I have rear wheel (freewheel) that I can reuse for an older bicycle (130mm between dropouts) . As the source bicycle frame has more width than necessary for this hub, there are metallic washers that I ...
Daniel Perez's user avatar
6 votes
4 answers
347 views

New wheels: WTB KOM Tough with 32 spokes sufficient?

I'm having a set of new wheels get built and I am opting for WTB KOM Tough's 29 inch rims with 32 spokes. The inner width will be 25mm. I'll be using this bicycle for touring/bikepacking/commuting - ...
PristineAsp's user avatar
3 votes
1 answer
112 views

Shimano WH-RS80 Hub measurments

Where I can locate the measurements for a Shimano FH-RS80 hub? They were used on the early C20-30 wheels from Shimano, usually Ultegra-labeled with Dura Ace wheels, and some were off road Deore. The ...
SAM's user avatar
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3 votes
1 answer
2k views

11 speed MTB cassette on 11 speed road hub (once again!)

Before I start: I know a similar question has been already answered here, but this time it comes with a twist. So here I go: My setup: 11 speed road hub - stock on on my DTs 11 speed MTB cassette - ...
DerMihai's user avatar
0 votes
1 answer
201 views

What size rear hub will fit a Trek FX1?

I have a Trek FX1 and the rear hub size 135x5mm. I want to change the hub to 135x10mm; is that going to be a problem? Also, my bike is v-brake system. If the hub I want to fit has a disc brake mount, ...
Emadness's user avatar
7 votes
1 answer
274 views

Schwinn Collegiate 26" Front Wheel Cone Lock Nuts?

I'm fixing an old Schwinn Collegiate, and the front hub may or may not have been worked on before. I'm finding no cone locknuts. On one side, there is a tabbed washer. 2 ear tabs hold the cone on 2 ...
Bruce Armenante's user avatar
2 votes
1 answer
434 views

What is the minimum end-cap diameter that a 12 mm fork should accommodate?

I have a fork with a 12 mm axle. As it happens, the flat part inside the dropout that buts up against the hub end-cap is large enough to accommodate a hub designed for a 15 mm axle (using a reducing ...
Will Vousden's user avatar
  • 4,011
4 votes
1 answer
276 views

Are my hubs holes normal?

Are this holes normal? They are not slotted.
user66450's user avatar
6 votes
2 answers
498 views

Tuning tightness on XT rear hub

So, background... I just got done replacing the freehub body on my Deore XT FH-M8000 rear hub. I did this because the hub was "grabbing" when it should have been coasting such that the hub ...
Andrew's user avatar
  • 978
3 votes
3 answers
1k views

Replacement Rear Wheel for Islabikes CNOC 16 (O.L.D. 110 mm)

I own an Islabikes CNOC 16. The CNOC 16 need a new rear wheel; the CNOC 16's rear wheel (16 x 1.35 / 34-305 / 14t freewheel / M30 thread) rim and spokes are damaged after I partially backed over tire ...
Nick's user avatar
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