After a long testing time finally ready and for sale.
Modified Leader rear pulley for non-rolling nut engines.
Race-proven quality! better acceleration, less slipping of the belt.
Necessary for high-power engines to put the power on the street and not lose it in a slipping belt.
Complete with a race-proven high-quality belt.
No electric start is possible due to belt size.
( order the separate pulley if you want to use it with the original piaggio belt and keep the electric start )
Included are; Pulley, belt, shims, bolts