POLINI BIG EVOLUTION Racing Cylinder series for high-end setups above 68 cc, available with 70, 84 or a brutal 94 cc (44 mm long stroke) and well over 20 hp power potential.

POLINI entered the displacement class above 68 cc with the BIG EVOLUTION kits, complementing competitors such as MALOSSI Big Bore, 2FAST and Stage6 R/T. The cylinders share an identical casting mold, with the only differences being the bore and stroke - either 70, 84 or 94 cc, the latter as a 44 mm long-stroke variant. The 84 and 94 cc versions are fitted with a piston with a 13 mm Gudgeon Pin. In suitable setups, you can expect to achieve well over the 20 hp mark and therefore plenty of reserves for ambitious racing projects.