12mm 4 Hole Big Bore Pistons

3 hole 12mm big bore pistons with o rings. Formerly GFR-4152 and 57-1046

Set of four blank big bore pistons

Big bore piston compatible with QS-5050 and QS-5053 shock shafts.

Big bore 3 hole piston compatible with the QS-5050 and QS-5053 shock shafts

Big bore piston with o-rings.  4 hole with 2 different sized holes.  Works best on rougher tracks.  Comes in a set of 4. Formerly GFR-4154 and 57-1109