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Forum: Bicycle Mechanics

03-27-24, 06:13 AM

Replies: 26

Stripped Crank Arm

Views: 983

Posted By JohnDThompson

And the other end of the pilot threads onto...

And the other end of the pilot threads onto "stud-type" axles. But it only works if the arm threads are damaged, but not stripped. And AFAIK, it's been out of production for many years now....

Forum: Bicycle Mechanics

03-26-24, 04:19 PM

Replies: 26

Stripped Crank Arm

Views: 983

Posted By JohnDThompson

That's how the VAR kit I mentioned above works....

That's how the VAR kit I mentioned above works. It cuts new, 24mm x 1.5mm threads, and then sell the customer the 24 x 1.5 thread self-extractors for subsequent crank removals.

Forum: Bicycle Mechanics

03-26-24, 04:17 PM

Replies: 26

Stripped Crank Arm

Views: 983

Posted By JohnDThompson

I've had that fail several times, on cheap MTB...

I've had that fail several times, on cheap MTB cranks with riveted chainrings. I couldn't get the wedges placed in way that didn't end up blocked by the inner chainring.

Forum: Bicycle Mechanics

03-26-24, 06:26 AM

Replies: 26

Stripped Crank Arm

Views: 983

Posted By JohnDThompson

Often, removing the mounting bolt and riding...

Often, removing the mounting bolt and riding around the block a few times is enough to work the arm loose. Don't go too far from home/shop, as once it gets loose you'll want to stop riding and walk...

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