Since Steffen's Frank Leitener retired I have been shopping for some one to do these knock apart cranks. Most shops seem toe send to CV Tech in Quebec. Who insist in only install all new parts. I did try New Hamburg but they seem too busy. I am 3 hrs east of Toronto so anywhere in that are or a little further east/north would be great. Frank used to strip clean and examine all parts to access whether still usable or not, and replace those not up to par. Call 613 474 2941 or e-mail, Paul.