C Clifton Gregory Well-Known Member Joined Apr 2, 2009 Messages 316 Aug 15, 2021 #1 I have a brand new OS Max 18CV - R MX, I need to know the crankshaft size, thanks. Cliff
Davidkrienke Well-Known Member Joined Jul 7, 2018 Messages 405 Aug 15, 2021 #2 its 5mm thread for the collet. Zip kits has them .