Repairing your bike when something is broken. REPAIR is not the same as MAINTENANCE, a separate tag. Repair is what one does only when something is broken. Maintenance is what one does on a regular basis.

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Headset can't tighten enough without stiffening steering, damaged bearing retainers?

I've just cleaned and regreased my headset (which is the stock Cane Creek headset on my bike). In doing it I've noticed that the bearing retainers are out of shape; they are not perfectly circular or ...
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1answer
72 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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1answer
83 views

Why are my quill pedal cages “wobbling”?

The plates and connectors on my old quill pedals "move around" in relation to the pedal axle itself: In the photo below, I'm pushing the pedals to opposite sides to show how the pedal cage "distorts". ...
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84 views

Clear coat on top of old paint in order to preserve it/frame?

Using nail polish to touch-up scratched/rusted frames is more or less well-known (cf. Girls Biking to Work), but recently a hobbyist restorer of old bikes told me that you can "just apply clear coat ...
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408 views

Serial numbers on bottom of a pedal crank housing from a 50s era Schwinn?

Can someone please explain what these three numbers mean on the pedal crank housing? I believe this to be the pedal crank housing from a 1956 Spitfire Ladies Bike. The Schwinn Serial reads M0D502 (...
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522 views

Shimano STX rear shifter, broken spring

I have to repair a Shimano STX shifter 7 speed (from a Raleigh MT200 bike from 1995). It has a broken spring, and I am almost sure that is the only thing to be repaired. It is similar to that ...
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371 views

Lowrider style bent forks techniques

Would a 24 inch bent fork fit on a 20 inch frame? Is there even a 24 inch fork? Would a 26 inch fit? Also if it doesn't fit in could I just add to the 20 inch - would you be able to extend it making ...
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27 views

Servicing RS XC30: oil overfill

This is the first RS fork I am opening. It is a steel spring XC30 from around 2013. I followed the manual and am currently at page 15 point 11. On a side note, my damper circuit is TurnKey, but look ...
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71 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. ...