OS Motors Cylinder & Piston 21XZ-B

    This is the replacement Cylinder and Piston assembly
    for usage with the O.S. .21 XZ-B ABC ENGINE - OSMG2050

FUNCTIONS:
Freshly designed liner ports for increased torque at low to mid speed
ABC construction, "A"luminum piston with "B"rass liner that is
    "C"hrome plated
4 port cylinder

CONSISTS OF:
One cylinder and piston assembly for the O.S. MAX .21 XZ-B ABC Engine

SPECS:
Bore: 0.543" (13.8mm)

NEEDS:
Setup into the O.S. MAX .21 XZ-B ABC Engine