THIS WILL ONLY WORK IN OUR 51MM BIG CYLINDER
STOCK HONDA CYLINDERS CAN NOT BE BORED OUT THIS BIG!!!!
WORKS WITH STOCK CRANKS OF (ALL_XR70_CRF70) (CT70_82_TO_94) (PASSPORTS_82_83) (CLONES_W/47MM_BORE)
@ 51MM_PISTON_KIT (NEW_70_HEAD) (LONG_ROD) (SHORT_CYLINDER) 1/22M (100037) (S1421)
100037 (S1421)