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Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

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Old 10-04-06, 01:07 AM   #1
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Nervar crank removal/bottom bracket

It appears that the two allen key holes on the crank arms are stripped. No Allen key would fit. Am I missing something here? The bolts look like they have been previously stripped. Am I screwed? Could I just drill them out if worst came to worst? How do I tell if the bottom bracket is french/italian or standard? I'm hoping it isn't french because I can't afford a new one.
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Old 10-04-06, 02:19 AM   #2
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Do you actually mean the allen head is rounded off? Please post a picture. Who would've rounded out both crank bolts?
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Old 10-04-06, 07:25 AM   #3
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If your cranks are Nervar-"star" than the allen holes are just to remove the dust cap over the crank bolt(which is a hex head). You can remove the dust caps using a slotted screw driver gingerly tapped into the stripped allen holes and carefully remove(you may want to use a thread cutting solvent prior to this to loosen the threads). If the hex heads on the crank bolts are shot, a long nosed vise-grip or similar may be the trick-but only use as a last resort, cause this may finish those heads permanently. Try a socket first.
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