High-end torque driver / rear pulley from 2Fast: 2Fast Aluminium Torque Drive for Minarelli engines. When used with an overrange front pulley, the gear ratio range is significantly extended. This allows the engine to stay in the optimal powerband over a wider RPM range, massively improving overall performance and acceleration.

• Brand: 2Fast
• SKU: TFAST032
• Availability: In stock

rear pulleyThe torque drive, also called secondary or driven pulley, is an integral part of the automatic transmission on scooters. It is the counterpart to the variator or front pulley and forms the rear drive unit. The rear pulley is located at the rear of the CVT housing and forms a unit with the clutch. As with the front pulley, there are also tuning versions of the rear pulley.Working of a CVT transmissionThe front and rear pulley (variator and torque driver) work together and are interdependent. At idle, the V-belt rides on its highest position on the rear pulley and on its lowest position on the front pulley. When you accelerate and engine speed increases, the drive pulley in front tu