Minarelli horizontal crankshaft Doppler reinforced

The DOPPLER Endurance crankshaft is designed for racing use. It is manufactured with a rectified solid mass and an anodized aluminum balancing plug, which reduces dead volumes at the bottom of the engine and ensures maximum balance and good inertia. It features a forged and rectified connecting rod with heat treatment, as well as a removable INA racing needle bearing box that can withstand up to 18,000 revolutions per minute. Its crankpin has a diameter of 18 mm, compared to the original diameter of 16 mm.

Right arm diameter: 20 mm

Left arm diameter: 20 mm

Forged connecting rod: Yes

Connecting rod length: 80 mm

Needle pin included: Yes

Bearings included: No

Piston shaft diameter: 12 mm