Hoca GY6 Stroker Crank, Part #169-47
Hoca Brand 2.5MM Stroker Crank for the GY6 125cc and 150cc engines. Overall Length: 285mm. Flywheel Thread Size: M12x1.25. Flywheel Thread Length: 16mm. Drive End Thread Size: M12x1.25. Drive End Thread Length: 16mm. Inner Diameter (piston pin hole): 15mm. Number of Splines: 19. Main bearings included.