High-quality tuning part from Stage6, the HPC MKII (High Primary Compression) crankshaft is the second-generation crankshaft from Stage6, designed for everything from lightly tuned sport setups to full high-performance racing engines.

Features Stage6 HPC MK2 Crankshaft

The crankshaft is made entirely of high-quality metal, including the counterweight inserts, ensuring perfect balance and excellent stability even at high RPMs.
The forged connecting rod provides outstanding strength and reliability, far surpassing cast versions.

Ideal for tuning and racing engines — from 50cc sport to 70cc high-end racing configurations.

Technical Details

• Connecting rod: Original length
• Stroke: 39mm (original)
• Piston pin: 12mm
• Small end bearing: 12x17x15mm
• Max RPM: 16,000rpm
• Product range: Racing / High-End Racing

Note: The crankshaft comes with two nuts; depending on your model, only one may be required. Attention: Only compatible with racing cylinders using a 12mm piston pin.