Hoca Minarelli 41.4mm Performance Crankshaft, Part #169-317
Ruima Stroker Crankshaft by Hoca for Minarelli 50cc, 2-stroke engines with a 10mm wrist pin. This crankshaft has a 41.4mm stroke, giving 2.2mm in additional stroke length over a stock 39.4mm crankshaft! 41.4mm Stroke Crankshaft. Overall length: 9 inches. 17 Splines. Flywheel Thread Size: M10x1.25. Drive End Thread Size: M10x1.25. Inner Diameter of Piston Pin Hole: 14mm.