Crankshaft

The crankshaft is one of the most important components in the motorbike engine. It converts the linear piston stroke into a rotating motion that transmits power to the gearbox and ultimately to the rear wheel.

This consists of a central shaft with crankpins and connecting rods connected to the pistons. The rotary motion of the crankshaft is generated by the combustion of the fuel in the cylinder.

The crankshaft must be precisely manufactured and able to withstand a high load. It is usually made of high-strength steel and is subject to strict tolerances to ensure low-friction rotation and long-term reliability.