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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Replacing Crankset

My dad bought a 2004 Fuji Absolute hybrid used and I rode it to a DIY shop to get everything checked out. On the way, the the chain came off once (1.5mi). Turns out the right crank arm is a little ...
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What's the strongest way to bond a cable stop to an aluminum frame?

I recently picked up another well loved GT road bike frame- it's in great shape aside from a missing downtube cable stop. The model is a ZR 4000 probably from 1999, it's 7005 heat treated aluminum. My ...
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356 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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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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208 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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322 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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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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53 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. ...