Piston Ø64.94 or 64.95mm ATHENA forged graphite kit 170cc on 4FU engine, YAMAHA TDR, TZR, DT, DTR, DERBI GPR ... 125cc 2 stroke

ATHENA high quality graphite and forged bi segment piston, delivered complete with axle, clips, domed hard chrome segments… It is the replacement for the 170cc ATHENA racing kits for 4FU engine (YAMAHA TDR, DT, DTR, DERBI GPR, TZR…). We have two wear ratings to select before purchase depending on the wear and the basic pairing of your cylinder. (generally we go on hill B (Ø64.95mm) after 15,000 km ...)