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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1answer
539 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
328 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?
3
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1answer
966 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
143 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
1k 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
647 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
924 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
12k 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
430 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
478 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
1k 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
271 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
583 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
965 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
11k 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
424 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
700 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
153 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 ...
6
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2answers
416 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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1answer
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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0answers
137 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
145 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
3k 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
4k 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
331 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 ...
2
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2answers
280 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
1k 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
246 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
678 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
51 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 ...
3
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1answer
741 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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1answer
1k views

Is it possible to use a 9 speed rear shifter with 11 speed cogs/cassette? Is there a disadvantage?

I'm new to biking and I plan to upgrade my bike, but with limited funds I can only upgrade the wheelset and cogs(cassette). Is it okay if I add the 11spd cogs but my shifter is only 9 speed (limited ...
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2answers
7k views

Compatibility of predictive steering hub with boost 110 fork

I have a bike which had a RS1 fork and a wheel with a required predictive steering hub. I have a second bike which has a Boost 110 front fork. Since both these hubs are 110mm wide, can I use the ...
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1answer
9k 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 ...
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1answer
641 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 ...
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1answer
713 views

What type of hubs attach on only one side< Tricycle front hubs [duplicate]

I wish to build a tricycle and one of the limiting factors is getting the front hubs. I search for tricycle hubs on ebay and get nothing useful. I would need both the hub and axle or the axle ...
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2answers
771 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
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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 ...
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0answers
917 views

Rear Hub Axle Appears Bent – Causes and Repair Strategy

I had my rear wheel off of the bike noticed that as I spin the axle it appears to be bent – the freewheel end of axle, for lack of a better way to describe it, orbits the centerline of the axle. ...
2
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1answer
54 views

Internal hub gear suddenly stopped shifting

I have never had an internal hub gear bike before, so I don't know much about them. My issue is that all of the gears stopped working suddenly when I was just riding the bike. The bike has 5 gears, ...
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3answers
927 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 ...
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1answer
229 views

Fixed hub threaded

I recently purchased a pre rad Bike, my friend who is a bike guy found it for me and said it was a good buy. Now when I learnt to skid I was fanging thru traffic non stop loving it, until that is the ...
4
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3answers
7k views

Hub dynamo, maybe loose contact; maintenance?

I experience problems with my Shimano hub dynamo. A few days ago, I stood in the dark, without any visible damage. Measurement prove that the dynamo does not deliver power. I measured DC and AC ...
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1answer
91 views

What is this cogset body?

I have some backlash (free movement) in my body of cogset, so I try to dissemble my cogset to discover this weird body: I'm trying to find a new one but I don't know how to call it. Any idea how it ...
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3answers
4k views

How to properly remove bearings from shouldered-axle track hub

I am trying to learn the right way to remove bearings from a track hub. The bearings are cartridge bearings pressed into the hub. The axle has a ridge that prevents it from being removed while both ...
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1answer
1k 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, ...