Wedgelock are cool, with hollow tubular crank arms and cotters that are especially easy to knock out due to their large wedge angle. UK made, so 5/8" spindle and 9/16" pedal threads.



Don't lose those cotters though! Being a hobby machinist, I could make more for myself if I had to, but I shudder to think what you'd have to pay a real machinist to make a couple. But these are so easy to remove that it's unlikely you'll ruin one from trying to get it out.