Re: Stripped crank arms = replace Tiagra cranks with 105 or Ultegra, new BB needed?



Brad Ford wrote:
Tonight I experienced the joy of riding 15 miles home on one leg.  The
ride started out fine, though my left cleat felt like it had a little
more play than usual.  Within minutes this feel intensified -- stepping
on the pedal with any force felt like my foot was hanging off of it at
a 45 degree angle below horizontal.  I thought maybe a rock had taken a
big chip out of the front of the SPD-SL cleat.  I stopped and clicked
out, and the pedal came along for the ride....not good.  The threads on
the inside of the left crank were stripped bare, and the pedal was
literally dangling there.


I was on a group ride out in the boonies when one of our members had the same thing happen. I thought he was toast as there was no easy way to call for help.


We ended up wrapping a power bar packaging around the threads of the pedal and re-inserted it back into the crank.

He finished the rest of the ride that included hills, without problems to my surprise (not that I wasn't happy for him!)

He ended up putting in a helicoil that lasted for a few years.

Definitely one of those things that I'll remember to try when I'm in a fix. Foil packaging also makes a good tire boots for small holes.
.




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