Vespa PX E Arcobaleno Electric Starter 150 [1981-1997] - racing clutch with Z23 sprocket with helical teeth

POLINI racing clutch with Z23 sprocket and helical teeth

The POLINI HT clutch is designed for racing use on the Vespa PX E Arcobaleno Electric Starter 150 from the 1981-1997 model year range. The design uses a reversed functionality: the inner hub is connected to the crankshaft instead of the outer bell.

Structure and function

• Pressure plate on thrust bearing for actuation of the clutch
• Aluminum bell as part of the clutch construction
• Covering the block with oil collecting channel
• Aluminum discs with 8 teeth larger design
• Sprocket with 23 teeth and helical sprocket

The clutch allows the spring force to be adjusted. This allows the actuation to be tailored to the respective application. The gearing of the primary wheel can also be selected for gear ratio adjustment. The gearshift is designed for precise and smooth shifting.

Vehicle assignment

Suitable for the Vespa PX E Arcobaleno Electric Starter 150, built between 1981 and 1997.

Factual information

The POLINI HT clutch is designed as a racing clutch. The system can be customized by replacing the primary gear with different teeth. A Z23 pinion with helical teeth is provided for this version.