VERTEX Bovenblok kit Piston diameter:A PROX's American-made bearings and seals

PROX's American-made bearings and seals are designed and manufactured for guaranteed reliability and optimal performance

and Sherco models

Internal 34mm

Hard in 10 min

No deformations

VERTEX Bovenblok kit Piston diameter:A PROX's American-made bearings and sealsVertex Top End Piston Kit FITS MODELS YZ 65 (18,20 24) SPECS Compression Ratio STD Cylinder Diameter 43,500 mm Displacement 65 cc Piston Diameter43. 450mm Vertex Two stroke Pistons Because of a cast piston's ability to contain higher silicon content compared to forged pistons, and because twostrokes have lower cylinder pressures when compared to four strokes, cast pistons are ideal for two stroke engines. Vertex pistons are gravity cast from an