May 5 2012

Bicycle Crank Arm Repair

A friend of mine gave me a Huffy with the pedals stripped clean off of the crank arms.  The thread in the crank arms was completely stripped.  After calling a few bike shops, and looking online, it seemed that replacing the crank arms on a Huffy isn’t worth the money, just buy a new bike.  I was happy to have a bike with shocks, I wasn’t about to give up.  So I simply repaired them.

Simple concept:

Fill the pedal holes in the crank arm (Weld them shut)
Grind for aesthetics
Drill the holes in the crank arm
Re-tap
Replace the pedals

Most hardware stores do not carry the necessary tap, you may have to order it online.

http://www.chainreactioncycles.com/Models.aspx?ModelID=55945

So I ordered the tap, bought some cheap, rugged pedals on eBay, and waited.

While it is recommended for that tap to use a a 33/64 drill bit,  I found that a 32/64, or 1/2 inch bit, will suffice.

Here are the pics.  It was a Saturday job.