Hoca Minarelli 43.5mm Performance Crankshaft, Part #169-319

Hoca Stroker Crankshaft for Minarelli 90cc, 2-stroke engines with a 12mm wrist pin. This is a full-circle crankshaft with a 43.5mm Stroke. This gives 1.5mm more stroke from stock and allows you to reach 99.6cc displacement when paired with our 54mm Big Bore Cylinder Kit. 43.5mm Stroker Crankshaft. Overall length: 9 inches. 15 Splines. Flywheel Thread Size: M12x1.25. Drive End Thread Size: M10x1.25. Inside Diameter of Piston Pin Hole: 15mm.