Crankshaft Stage6 HPC Derbi Euro 3 / 4 stroke 45mm

Crankshaft Stage6 HPC Stroke 45 connecting rod 90 for Derbi Euro 3 and Euro 4 engines.

The manufacturer Stage6 developed this high primary compression (HPC) crankshaft especially for the Stage6 88cc cylinder kits (Big Racing + Streetrace).

The crank arms of this high-quality crankshaft are lighter and, together with the lightweight alloy counterweights, the balance of this crankshaft is excellent. The connecting rod, specially designed for this crankshaft, offers significantly greater strength as it is 14mm wide (instead of 12 mm); this reduces bearing wear and increases stability even at extremely high speeds.

Features:

• Connecting rod: 90mm (original)
• Stroke: 45mm
• Piston pin: original (12 mm)
• Needle bearing: 12x17x15mm
• Weight: 1475g
• Maximum RPM: 16,000rpm

It is always recommended to install new bearings when you modify the crankshaft.

Attention: The crankcase must be slightly machined so that the connecting rod can operate smoothly. Please check before assembly if and where the case will need to be machined exactly.

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