Originally Posted by
randyjawa
Has anyone modified a French threaded crank set to fit British thread pedals? I have access to a set of 9/16" x 20 left and right hand taps to alter the threads on my Stronglight 49D crank set. Do I have to run a drill through the pedal thread or just go at it with the taps? Thanks and I was not sure if this question was more appropriate in this forum or a mechanical one.
Make sure the crankarms are firmly clamped and be sure the tap is square. Then go at it. I did it the hard way many years ago. I forced a Brit thread into a French thread crank. Tapped them out quite nicely, thank you. Had fun getting the pedals out 20 years later. In fact one is still stuck in the crank arm.