Stage6 HPC Tuning Crankshaft – Derbi Euro 3 / Euro 4

High-quality performance crankshaft designed for Derbi engines from 2006 onward (Euro 3 and Euro 4). This HPC (High Performance Crankshaft) is engineered for tuned setups ranging from sport to high-end racing cylinders.

Built entirely from metal with metal counterweight inserts, it provides excellent balance, rigidity, and durability even at high RPM. The forged connecting rod ensures significantly higher strength compared to standard cast rods, making it suitable for demanding engine configurations.

Key features :

• Fully metal construction with metal counterweights
• Forged connecting rod for increased strength and reliability
• Optimized balancing for high-revving performance
• Designed for sport and racing applications

Technical specifications :

• Connecting rod length : 90 mm (original)
• Stroke : 39 mm (original)
• Piston pin : 12 mm
• Small end bearing : 12 × 17 × 15 mm
• Maximum RPM : up to 16,000 rpm
• Application: tuning / racing

Compatibility :

• Derbi Euro 3
• Derbi Euro 4