Big Bore 1.5mm 3 Hole Piston (4)

Big bore 3 hole piston compatible with the QS-5049, QS-5050, QS-502, and QS-5053 shock shafts

Small bore three hole piston compatible with the following shock shafts: QS-5048 QS-5049

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

4 hole 12mm big bore pistons with o rings. Formerly GFR-4153 and 57-1047

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

Small bore pistons compatible with the following shock shafts:   QS-5048 QS-5049

1.25mm small bore three hole piston

1 set of 4 aluminum 4 hole pistons with o-rings.     Compatibility: IRS Shocks GFRP/HD Cars Formerly GFR-4074 and 57-1094

1 set of 4 aluminum 3 hole pistons with o-rings.   Compatibility: IRS Shocks GFRP/HD  Formerly GFR-4073 and 57-1095