Oh! Cottered cranks! Hateful things in my book. Always a fuss to file the pin faces to match the taper on the spindle, then knocking them out again at the next service is no fun, either. Always stuck fast and then the threads got deformed even if one used care to leave the nuts on the threads.
Scarred me for life, I tell you!
All hail the cotterless square-taper three-piece crank!
Best,
Dan. (...who is just shaking off bad memories and will be okay again in a few minutes)
