Polini quality and durable cast iron construction. Open up a third transfer on your stock cases for peak power. 2 ring piston ensures a good seal and long life. 46mm bore is roughly 70cc of displacement.
Fits 103, 105, TSM, TSA, TSE, Fox, and Wallaroo.
Comes with piston, rings, pin/clips, gasket set, and cylinder.
Polini part number 142.0089