Crankshaft Stage6 HPC Derbi Euro 3 / 4

Crankshaft Stage6 HPC for Derbi Euro 3 and Euro 4 engines.

The high-quality crankshaft is made entirely of metal, and the counterweight inserts are also made of metal. This results in excellent balance and stability even at very high revolutions. The connecting rod is forged and offers high strength and reliability that far exceed those of cast connecting rods.

Crankshaft designed for 50cc or 70cc sport range cylinders.

Features:

• Connecting rod length: original (90 mm)
• Stroke: original (39 mm)
• Piston pin: original (12 mm)
• Needle bearing: 12x17x15mm
• Maximum rpm: 16,000 rpm

Attention: We always recommend installing new bearings when modifying the crankshaft.

Attention! You must carry out balancing checks before installing in the engine, since manufacturers deny warranty for any balancing fault found after installation.