Hey guys did a search for the master cylinder size of a 2004 636. Does anyone know the bore of this master cylinder? thanks in advance for any help

 

I looked in cheap cycle parts and that same part number fits numerous rides and quads, but does not list a size. I do not have an answer for you on the piston size. Give a call on the kawi part no: 43020-1056 to see what they will tell you. Good luck.