Vespa Sprint Veloce 150 [1977-1979] - racing clutch with Z23 sprocket with helical teeth

POLINI racing clutch with Z23 sprocket for the Vespa Sprint Veloce 150

The POLINI racing clutch is designed for racing use and has a reverse function: the inner hub is connected to the crankshaft, while the outer bell does not take on this function. The version with Z23 pinion and helical toothing enables a targeted selection of the primary toothing for the coordination of the gear ratios.

Function and design features

• Pressure plate with thrust bearing for operating the clutch.
• Aluminum bell as part of the clutch construction.
• Cover of the block with oil collecting channel.
• Adjustable spring force to adapt the clutch characteristics.
• Precise and smooth gear shifting for controlled gear changes.

Interlocking and coordination

The helical Z23 pinion is designed for use with the POLINI HT clutch. The gear ratios can be adapted to the respective structure by selecting a suitable primary toothing. The clutch can be modified by replacing the primary gear; Different spare parts are available for this.

Vehicle assignment

Suitable for the Vespa Sprint Veloce 150, built between 1977 and 1979.

Factual note

The product name refers to the version with Z23 pinion and helical teeth. When selecting the gearing, the desired translation and the existing primary configuration must be taken into account.