Stage6 Crankshaft HPC MKII 12mm Vertical (Minarelli, Yamaha)
Description: Stage6 Crankshaft HPC MKII 12mm Vertical for Yamaha Zuma 50cc, Minarelli 50cc 2-stroke scooters. The Stage6 HPC (high primary compression) crankshaft is a full-circle crankshaft and as such increases primary compression in the crankcase. It has been developed in cooperation with F. Koopmans and is completely made of metal (i.e. no plastic padding). The bearings can handle up to 16,000 rpm! Made in Italy.
NOTE: This does not include crank bearings, sold separately.
Temperature Modification May Be Required: You'll need to heat the aluminum crankcase area where the crankshaft bearing side will be placed, in order to fit immediately the freezing Polini Crankshaft bearing side. Users assume full responsibility and risk doing so using this Polini Crankshaft.
Includes the following Crankshaft and Wrist pin bearing.
• Overall Stroke: mm
• Wrist Pin: 12mm
• Full Circle Crank
• Made in Italy
• Fit Aprilia
• Fit Minarelli
• Fit Yamaha
Supported Models: Aprilia 100 Scarabeo 2T (Minarelli Yamaha), Yamaha Aerox, Yamaha Neo's, Yamaha BW'S, BW'S100, Yamaha YW100, YW100SWC, YW100A, YW100B, and YW100D, Various unlisted makes/models
Item Weight & Package Dimensions:
• 3.33 pounds | 10.5" (L) x 5" (W) x 3.5" (H)