Vespa PX 150 [1978-1997] - racing clutch with Z23 sprocket straight teeth

POLINI racing clutch with Z23 pinion for Vespa PX 150

The POLINI HT clutch is designed for racing use in the Vespa PX. In this version, the component connected to the crankshaft works as an inner hub, while the outer bell takes on a different function. The reverse operating principle forms the basis for the special design of the coupling.

Function and design features

• Pressure plate on thrust bearing
• Aluminum bell
• Block cover with oil collection channel
• Adjustable clutch spring force
• Pinion with 23 straight teeth

The clutch allows the toothing of the primary wheel to be selected in order to adapt the gear ratio to the respective application. By replacing the primary gear, the HT clutch can be modified with other available spare parts from the appropriate program. The construction supports precise and smooth gear shifting.

Vehicle assignment

Suitable for Vespa PX 150, built between 1978 and 1997.

Technical note

This version uses a pinion with 23 straight teeth. The clutch also offers the option of adjusting the spring force. The gearing used on the primary wheel is decisive for the selection of the gear ratio.