Hello, I am Brazilian and buy parts for my CRF 250R 2006 in US.
My mechanical said I need to buy a piston "size/kind C".
It make sense in portuguese, but I don't know how to specify it in english.
A new bike uses size/kind A, then when it is getting worn change to B, then to C so on.....
Does anyone can help me to specify size/kind C in english?
Does anyone recomend a good shop to buy inthe internet?