KOSO 61mm Forged 4v Piston Kit for 170cc 4V BBK : Honda GROM / GROM SF/ '21-22 CT125 , MD623010

KOSO 61mm Forged 4v Piston Replacement Kit for 170cc 4V Big Bore Kit 

Part# MD623010

Fits:  2013-2020  Honda GROM / GROM SF    / '21-22 CT125

(incl. piston, rings, pin, clips,)

Please Note:  This replacement Piston Kit is ONLY for the KOSO 170cc 4V Big Bore Kit Part# MB623003