Horizontal Minarelli Crankshaft, 85mm connecting rod, RB Racing

Crankshaft 85mm connecting rod RB Racing for Minarelli horizontal.

If you are looking to extract every horsepower from your engine, the RB Racing crankshaft for 70cc and 80cc setups is the component you need.

Its most outstanding feature is its machined 85-millimeter connecting rod. By increasing the connecting rod length compared to the original 80 millimeters, the angle of inclination during the combustion cycle is drastically reduced. This results in a drastic reduction in the lateral forces of the piston against the wall of the cylinder, reducing friction and wear. 

With a weight of 1520 grams and webs measuring 75 millimeters in diameter, this 39.3-millimeter stroke crankshaft provides the inertia needed to keep the engine stable in the highest RPM range, reducing the vibrations that usually fatigue the crankcases and destroy the bearings.

Technical specifications

• Engine compatibility: Minarelli Scooter
• Stroke: 39.3 millimeters
• Connecting rod length: 85 millimeters (machined)
• Web diameter: 75 millimeters
• Weight: 1520 grams