Originally Posted by 39cross

My wife has a Sprite that looks like it's the 1970 5-speed freewheel model. It originally had an Allvit that died somewhere along the line, now it sports a Shimano Eagle II. She'd like to replace the rubber blocks on the pedals, they are very worn and slippery, but it looks like the only place I can find sells pricey repros on eBay out of Thailand. So perhaps some new but similar looking pedals are what she needs. From what I've read the cranks should take a 9/16" pedal, but these pedals, it turns out are some odd sort of size. A 15mm wrench was too small, as well. I found a 5/8" wrench was needed. A 9/16" pedal will partially screw in, but of course not completely. I've been doing some searches but I haven't been able to find any more info on odd-ball thread pedal sizes. I have some 9/16" taps and was thinking of just re-tapping the threads on the crank arms. Is there any potential issue with this?

Here's a photo of the original pedals. Thanks for reading.