Vespa Vespa 125 [1977-1982] - racing clutch with Z22 sprocket straight teeth

POLINI racing clutch Z22 for Vespa 125

The POLINI racing clutch with Z22 ring gear and straight-toothed pinion is designed for adjustable power transmission and precise shifting processes. Their reverse operation connects the crankshaft via the inner hub, while the outer bell does not take on this task.

Function and structure

• Pressure plate with axial bearing for resilient operation of the clutch
• Aluminum bell for the structural design of the clutch
• Cover for the block with oil collecting groove
• Aluminum discs reinforced with 8 teeth to support power transmission
• Adjustable spring force to adapt the clutch characteristics

Technical execution

This version has a primary gear with Z=22 and straight teeth. The POLINI HT clutch allows the selection of different gearings to adapt the gear ratio. By replacing the primary gear, the clutch can be modified with other available gear variants. The design supports precise and smooth gear changes.

Vehicle assignment

Suitable for the Vespa Vespa 125 in the full year range from 1977 to 1982.

Factual note

The coupling belongs to the engine category and is designed for use as a coupling unit with a straight tooth profile and Z=22. The adjustable spring force and the choice of primary toothing are available as design options for tuning.