Technical Data

Displacement: 3,975cc / 0.242 cu.in.

Bore: 17,00 mm

Stroke: 17,50 mm

Weight: 350 gr.

Head Diam. : 59,50 mm

Operating range: 4.000 – 45.000 rpm

Vacuum high pression injected Crankcase

Lightened Crankshaft

6 Ports cilinder with antifriction HCP coating

Sinterized alloy piston

Rear Steel Ball Bearing

Double adjustment Carburettor with Interchangeable venturi