Stage6 HPC MK2 Racing Crankshaft – Minarelli Vertical (Yamaha BW’s)

High-quality Stage6 HPC MK2 crankshaft for Minarelli vertical engines, designed for tuned and racing setups using 12 mm piston pin cylinders. Suitable from sport 50cc up to 70cc high-end builds.

Key features :

• High Primary Compression (HPC) design
• Fully metal construction for excellent balance
• Forged connecting rod for high strength
• Stable at high RPM

Technical data :

• Stroke: 39 mm (original)
• Connecting rod: standard length
• Piston pin: 12 mm
• Small end bearing: 12×17×15 mm
• Max RPM: up to 16,000
• Use: racing / high-end racing

Note : Only compatible with cylinders using a 12 mm piston pin.