Singlespeed & Fixed Gear - crannnnk sets

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Revit
10-07-05, 12:09 AM
i just sanded down the frame and jascoed it, now i need to put on a clear coat...

do you guys know how to take of the crank set? i really need to know quick! thanks

bostontrevor
10-07-05, 12:24 AM
That's a cottered crank, dude. Look up info on how to remove those.
mrbertfixy
10-07-05, 12:31 AM
http://sheldonbrown.com/gloss_cn-z.html#cotter
http://sheldonbrown.com/cotters.html
http://sheldonbrown.com/tooltips/cotters.html

Revit
10-07-05, 01:04 AM
Wow, this seems pretty god damn hard!
bikejack
10-07-05, 01:50 AM
Take off the nut and use a brass drift or other suitable dolly and a hammer to give the threaded end a good whack and break the taper.
Aeroplane
10-07-05, 06:22 AM
It's not that hard to get them off. Just make sure you brace the bottom of the crank against a piece of pipe or something else that is pressed against the ground, so when you whack it with the hammer, the force is tranferred to the ground via the pipe, not via the bottom bracket, frame, and wheels.

I recently repainted a frame with cottered cranks. I only removed the drive side one to cut the hassle in half. It works okay so far. The difficult part is getting them reinstalled correctly.