Bicycles Stack Exchange
Bicycles Stack Exchange

Questions tagged [hub]

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

468 questions
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Why are hub shells such different diameters?

I'm curious: why are some hub shells much larger diameter than others? Is it an aesthetic consideration? Or are there cost/functionality tradeoffs? Take for example this Dura-Ace hub -- pretty skinny. Same for a classic Campy record hub. Compare…
joseph_morris
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Why are axle cone nuts on the left side of a bike not reverse threaded?

I recently discovered that the adjustable sealed bearing cartridges on my rear hub failed prematurely because one of the "cones" (cartridge shoulder nuts) had somehow tightened itself, putting undue pressure on the bearings. While I was warned that…
con5013d
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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 would pull on the chain and crank with noticeable force…
Andrew
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How do I remove the freewheel side of a flip flop hub?

I've got one of those flip flop hubs, and I need to remove the freewheel side and either service or replace it as it has started slipping really badly. What tools do I need?
Andrew Welch
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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 are given as part of the specs for hubs, but I…
Federico
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Can I replace loose ball bearings with caged ball bearings in my hub?

I currently have loose ball bearings for my hubs and I am wondering if I can put caged ball bearings in there instead. Can anyone let me know if they are better or worse than loose bearings. Also I thought of asking this because I noticed my front…
William T
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Bearing cone and locknut won’t tighten. Easily fall off when taking wheel off. Has it snapped?

Recently I noticed a ball bearing had almost fallen out of the hub so I took the wheel off to find out what’s wrong and the cone that covers the bearings just fell off the wheel! Not the one but both. I took a closer look and noticed there was…
William tredwin
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How to remove a threaded bottom bracket?

How to take this thing off? I think this bike is from West Germany. What tool do I need and is there a screwing direction trick? Thanks! (I am taking this off to repaint)
András Szepesi
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Do new hubs need to be adjusted prior to use

Do new hubs usually come adjusted, or one needs to adjust them prior to use. I have a new Shimano Claris hub, and it does not seem to be as smooth rolling as my previous Tiagra hub. Should I try to adjust it, or leave it as is?
Davorin Ruševljan
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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
Cormac
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What's this Knocking from rear hub when coasting at high speed

I recently started to notice a rhythmic clicking sound coming from the rear of the bike, when coasting, several weeks ago. I ride an average of about 10 miles per day. This sound was intermittent, and occurred only when coasting, in addition to the…
SamA
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How do I remove this hub?

I purchased a used set of wheels for an old Schwinn. I'm looking to replace the hub because when I put the old Schwinn front freewheel system cartridge on it, the spacer rubs quite badly against the inside of the cartridge. There are no lock nuts,…
Lou Fancy
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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 must remove the cone-shaped piece (#2 in the…
Daniel R Hicks
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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 the step variation between transmissions?
Євген Волощенко
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How to adjust rear hub on Giant ATX 2?

My back wheel on my Giant ATX 2 2019 is wobbly, so I am trying to adjust it. I saw many videos on how to do this. For example, but none of them feature the type of hub that I have. It seems like an axle and skewer in one part (see photos below) My…
yigal
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