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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2answers
1k views

Giant ATX 2 2017 axle size?

I have a Giant ATX 2 27.5 2017 and I broke my rear axle 😭. I sent it to my LBS, a week later they told me their axle fitted the front wheel but the back wheel was a different size. They haven’t got ...
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0answers
323 views

How to reassemble Trek 820 rear wheel? [duplicate]

In the process of replacing my gear cassette on my Trek 820 bike I took apart my rear wheel hub and bearings and I have no clue how the parts are supposed to go back together.
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1answer
254 views

What 70's/80's freewheel threading is most common in central or eastern Europe?

Just interested to know? For example, if an 80's steel frame road bike in Europe came with Suzue high flanged hubs (94mm spacing front and 126mm rear), what type of freewheel threading would be ...
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1answer
962 views

Grease for hub bearings? (NLGI grade)

I know this question has been asked many times on here and other bike forums. I'm struggling to find a proper answer. The NLGI basically refers to the thickness of a grease. I have some lithium ...
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2answers
366 views

Failing hub bearings on a beater bike (freewheel) — time to replace the bike?

I run an old Raleigh Michigan that only does about 12 miles per week and lives outside a station mostly exposed to the elements. While replacing the rear derailleur cable yesterday (it had almost ...
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1answer
92 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?...
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1answer
749 views

Remove Maillard freewheel

I'm trying to open the freewheel from an old bike that I have, but I can't find how. I even searched for tutorials on the Internet but I can't find one that looks like mine (please see picture). And ...
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2answers
68 views

Gears and chains [duplicate]

How do I know if I can put up a 10speed casette on my 2x8 setup (so can hub support it or do I need a new hub?). Also can I put a single speed chain on this setup above? I can't seem to find colored ...
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2answers
382 views

Specialized tri-spoke rear wheel free hub replacement?

I'm looking to replace the free hub on my Specialized tri-spoke rear wheel. Can't seem to find a model number,and would love to put an 11-speed free hub. Hope for some help?
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1answer
672 views

Boost 148 and 110 standard specification

Where can I find exact specification for boost 148 and 110 axle specification. I was able to find many documents describing main features of it, but I would like to read document with all exact ...
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2answers
667 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 ...
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1answer
1k views

Hope pro 4 rear hub wear

When I removed the Shimano 5800 cassette from the Hope 4 Pro hub I noticed that there is a significant axial play of the freehub body. Also I am able to slightly twist the driveside spacer from side ...
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4answers
17k views

Labour cost in building a wheel

What is the labour cost or time involved in building a wheel. I want to use a different hub with an existing wheel
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3answers
127 views

Recommended transmission for a commuting bike

I want to get a new transmission group for my bike and I'm quite confused, so I'd really apreciate some help from the community. Here's some context: I own, since last October, a Giant Escape 2 (...
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2answers
946 views

Freehub body wiggles

This is a OEM wheel from a 2014 Salsa El Mariachi Single Speed, called a "Salsa 2, Singlespeed" hub, which I believe is made by Formula. The freehub body "wiggles" (the thing that my fingers are ...
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1answer
601 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, ...
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1answer
368 views

shimano CS-5600 compatible rear hub and freehub body

What rear hubs and/or freehub bodies are compatible with a Shimano 105 5600 10-speed 12-25T cassette?
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1answer
1k views

Front hub conversion Shimano HB-M756L XT to Thru-axle

Has anybody converted a Shimano HB-M756L XT Front to a 15mm thru axle? The problem is that my bike fork has 15mm holes for thru axle but I have a new/nice set of QR wheels. I need to either convert ...
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1answer
146 views

Help me understand my Hub Gear bicycle

I recently acquired a second-hand Hub gear hybrid bike. It only has 3 gears. I know little about bike mechanics but would like to try and understand more. When I cycle the gear shifts between gears ...
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5answers
2k views

Can hubs last forever?

In theory, could a bicycle hub last forever if you kept overhauling it (and getting new spokes and rims and etc.)? I'd like to know about all the hubs, but what really interests me is whether or not ...
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1answer
876 views

130mm hub on 135mm frame

I'm looking to upgrade the wheels on my touring bike to a lighter set of road wheels. The frame is aluminum. According to Sheldon Brown you should be able to just put extra spacers between the ...
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1answer
3k views

What size are shimano MTB (wheel) hub ball bearings?

I wish to replace the Ball bearings in my Shimano hubs. What is the standard sizing for MTB?
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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 ...
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2answers
15k views

Remove rounded nuts/bolts from wheel on old bike

I have an old bike I need to repair (including flat tyres!) Unfortunately it has rounded nuts on it and can't seem to unscrew them. Is there an easy non expensive way to remove them without damaging ...
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3answers
456 views

Rear hub freewheel and casette

I am having some issues with my drive trainsystem. I have changed my chain after quite a while (shame on me) with a new one, that i sized exactly on the same number of links as the old one. When ...
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4answers
570 views

Servicing a Vuelta XRP Disc Hub

I can't for the life of me figure out how to get the freehub body off of this hub. Everything I can find online about the Vuelta hubs says that I should be able to stick a 5mm hex key into both sides ...
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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 ...
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1answer
290 views

Wobble in rear hub

I have a 97' cannonade f1000 that has had disc brakes installed. The rear hub developed a wobble after only 200 miles. I took it back to the shop that built and installed my set up. I thought they ...
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1answer
651 views

Replacement parts for Trek 7.3

My bicycle was stripped of parts (both wheels, seat post and saddle) outside my house and I'd like to replace them myself as the shop is looking for a huge sum of money to do it. This isn't the ...
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3answers
1k views

New wheel, why not go with disk hub?

I'm getting a new rear wheel built for my commuter. My bike frame does not support disk brakes. I do not intend to use disk brakes in foreseeable future either . I checked the price for Hope rear ...
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2answers
12k views

What's the deal/appeal with loud MTB hubs?

Why are a lot of mountain bikers looking to get hubs that make loud sounds? Does it have an advantage or use on the trails?
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2answers
497 views

Hub dynamos and standlights

I've been searching for the answer to this for a while now and still none the wiser so trying on here... I've recently bought a second hand hub dynamo and am looking to get some used lights to go ...
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2answers
956 views

how do I adjust the wheel?

I've just fixed my flat tire on the front wheel and now I found out that if I try to push the wheel to the sides it kind of moves a little. it feels like it's not secured to the hub. How do I fix that?...
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1answer
210 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 ...
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2answers
452 views

Identify this hub (similar to a Sturmey Archer rear internal gear hub w/ drum brake)

I recently came across the auction of an old Gazelle city bike. It is equipped with rear internal gear hub with drum brake which looks like Sturmey Archer 3 gear hub. But this hub has two shifting ...
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2answers
2k views

How to determine correct bearing size for Quando hub?

I'm servicing the Quando hubs on my single speed/fixie bike. This hub uses a cup and cone type bearing assembly. When I removed the cones I noticed that one of them is chewed up badly at the end. I ...
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2answers
3k 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 ...
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141 views

What do the numbers on my hub mean?

I have a Giant mountain bike front hub from a Giant P-XC2 wheelset with the inscription "12,23-12" on it. What do these numbers mean?
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1answer
149 views

Bike hub sealed bearing

I'm wanting to get a new fork for my bike but I have a sealed bearing hub (not sure what axle size, 5mm or 9mm) I was just wondering can I convert a sealed bearing hub to a different axle size? (15mm ...
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2answers
4k views

Any tricks to disassembling an Easton R4 rear hub?

We're looking at a Raleigh (very) lightweight bike with Easton R4 hubs on it. The rear (apparently part # HD10M1732 on the hub) has a broken spoke on the non-drive side. To access the spoke ends we ...
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1answer
5k views

Can I swap freehub bodies?

Background I have an 8 speed 26" freehub/cassette based wheel on my MTB. It runs a 7 speed MTB cassette with a spacer and 7 speed shifter. It works fine. I also own a 20" folding bike that has a 6 ...
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1answer
373 views

Torpedo duomatic stuck in one gear because of too much grease. How to lubricate correctly?

I have a Speedo Duomatic that has been stuck in one gear the last 10 years. Probably because of too much lube in the wrong places. Now is the time to fix this. Everything is clean and I'm ready to put ...
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1answer
2k views

How to tighten a Fox Thru Axle, Cam Lever/QR Skewer?

The cam lever on my Fox Thru Axle is loose but its unlike the Rockshox axle where you can just tighten it up with a little allen key at the top. (edit from comment below) The quick release lever is a ...
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2answers
312 views

Downsize Chainring

I have a Montague Boston full-sized folding bike which ships as a fixie. I've added a Sturmey-Archer 8-Speed hub and now am trying to determine the optimal chainring size. The stock chainring has 42 ...
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3answers
1k views

Has anyone here ever threaded the left end of a rear hub? (To add a left-side freewheel)

I have found endless opinions on mass-manufactured hubs that are either left-side-threaded or 'reversible' or etc. I am not seeking information or opinions on these. I am also aware of the available ...
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1answer
2k views

When I pedal the back wheel doesn't turn [closed]

When I pedal my back wheel of my BMX bike doesn't turn. About a month ago I took my bike to the shop and they said it would be a 200 dollar fix with my tune up. It all started with a while ago, I ...
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0answers
256 views

Nexus 3 Speed Hub Up Steeper Hills Turns Weird

I have a Linus Roadster Sport that has a Nexus 3 speed hub on it. It shifts gears just fine but I noticed recently that when I have it in first gear to go up a somewhat steep hill, the pedals turn ...
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1answer
747 views

What are rotary gears? Sturmey Archer 3 Speed

I am confused by the three three-speed hubs that Sturmey Archer offers that are supposedly the same thing (3 speed hubs with a 177% range). I can gather that the S-RF3 is simply an Aluminum version of ...
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1answer
65 views

Where to find a 14.4 mm long and 16.9 mm wide hub cone?

I was servicing my bike's ball bearings in my wheels when I noticed that the rear hub cones need to be replaced, as they are heavily wearing down. I looked online for replacement hubs but none fit the ...
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1answer
962 views

Reassembling Shimano FH-M150 rear hub

First time servicing a rear hub for me. I disassembled and cleaned my Shimano FH-M510 rear hub, removing the nut, washers and cone only from the left side of the axle. When I went to insert new ...

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