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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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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40 views

Formula hub - fixed cone on the axle

Does anybody have the diagram for a generic Formula hub axle assembly? It has a fixed cone on one side of the axe with no spanner flats. I'm not sure which side of the hub this is supposed to go on ...
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89 views

DT SWISS 1800C Spline converting from 142-12mm to 135-10mm thru bolt

I'm building up my AWOL 2016 model and bought new wheels and front fork. With the front wheel I have no issue, but the back wheel presents a small problem. The wheels i bought are DT Swiss C 1800 ...
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108 views

Replaced axle and now clunking in back

I finally got a rear axle replaced, and all new cones on a new axle... I assembled it back together with 7 or 8 of the bearings in on each side and some grease, put it all back together, put the ...
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1answer
172 views

Finding compatible fixed-gear cog and lockring

I have a flip-flop hub that came stock on a Trek single-speed. I'd like to install a fixed-gear cog and lockring opposite the existing freewheel. How can I determine which cogs and lockrings are ...
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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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242 views

What to upgrade on a Raleigh MV7? 20"

I am undecided to upgrade the BB and crank or change a wheelset. Any advice on what might help me spend less effort pedaling? I actually find a steel 26" MTB easier to pedal.
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1answer
40 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, ...
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70 views

What's a good hub for ultra bikepacking races?

I've now twice had the body of the rear hub destroyed during bikepacking racing (999 Miglia 2017 and Race Around Denmark 2018). I'm currently using Zipp 303 Disc with 177D hubs from 2016 and it seems ...
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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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921 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. ...
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1answer
101 views

Disc Rotor Alignment Mavic Crosstrail

I have a disc rotor alignment question you maybe can help me with. I have a Canyon Nerve AL+ 8.0 that's been working nice until the front wheel got stuck on the brake. First I thought it was a brake ...