Vertex have been making race pistons for all small capacity race engines both 2 and 4 stroke for many years,the race piston from vertex always perfoms very well and in the case of the 4 stroke can be supplied as a high compression version.
kit includes
*piston
*rings
*clips
*pin
on the drop down menu the R is for crf250r motocross and the X is for the crf250x enduro
HC is for high compression,we do recommend the high compression pistions as they are a direct fit without modification to the engine.
please call 01487813755