crankshaft Doppler ER1 for Peugeot Fox 50cc 2-stroke AC moped (electric ignition)

The Doppler ER1 racing crankshaft is forged and balanced with aluminium inserts that reduce dead volume in the lower part of the engine while ensuring maximum balance and good moment of inertia. The forged connecting rod is heat treated and mounted with a nickel-chromium-silver bearing with INA needle cage for high engine speeds.

Right-hand thread for ignition!

Piston pin: 12mm

Stroke: 76mm

Conrod: 76mm

Right-hand crankshaft stub: 17mm, for 6203 ball bearing

Left-hand crankshaft stub: 20mm, for 6204 ball bearing