Stripped Crank Arm Threads
 

The threads on the non-drive side crank arm have been stripped. Is there anyway to remove the crank arm without destroying the frame or crank arm?

Thanks!

J.A.Stein crank extractor system will work. Not cheap to own though. Might want to check around with your LBSs to see if they have one in their service department.

If it is a inexpensive crank I would cut it off and replace the arm with something similar or as suggested see if local shops have the tool. Although very useful I doubt may shops will have it in the shop.

Thanks! I might just cut it off. It;s a cheap sugino one. So probably not worth it.

How would u suggest cutting? With a dremel and diamond blade?

No real need to cut it -- thread the crank bolt in loosely, ride the bike carefully up a hill, too high a gear so you're mashing hard. The crank will quickly squirm loose on the spindle; you'll wreck the crank but won't damage the spindle if it's steel.

Just be careful the crank doesn't come all the way off.

WOW!!! Thanks! I just played around on it outside on the street and it came off. Thanks!

I just ride around in the parking lot. Works every time, although some times take longer than others.