Polini HT clutch 23 teeth for Vespa PX and Cosa
Polini HT (High Torque) Racing Clutch For Race for Vespa Largeframe PX, Rally, Cosa, T5, Motovespa TX, DS, DN
The Polini HT clutch is a high-performance racing clutch for demanding riders and a real highlight on the clutch market. Polini is picking up on the trend towards innovative reverse clutch technology, such as that used for a long time in the high-end clutch from Kingwelle, and with the HT Clutch offers a clutch in which the lightweight hub and not the heavier clutch basket is connected directly to the crankshaft. The result? Lower inertia, which enables smoother, faster and more precise gear changes.
Optimized design for best performance
- Lightweight aluminum construction: Both the clutch basket and the lining carrier are made of high-quality aluminum, which reduces weight and increases performance.
- Needle bearing: A needle bearing hub minimizes friction and further improves shifting performance.
- Aluminum friction disc option: For racing, Polini offers optional aluminum friction discs that provide excellent grip - ideal for maximum performance on the track.
Individually customizable features
- Adjustable spring stiffness: The spring stiffness can be individually adjusted thanks to spacers.
- Replaceable clutch sprocket: The steel sprocket is bolted to the aluminum basket and can be easily replaced with models with more or fewer teeth as required.
- Primary wheel adaptations: Polini offers straight and helical-toothed clutch pinions for various primary wheel ratios to optimally adapt the setup to the respective model.
Technical details at a glance:
- Aluminum basket and hub for low weight
- Needle bearings for optimum gear changes
- Adjustable spring stiffness, with spacers
- Wave spring for perfect pressure plate guidance
- Clutch pinion interchangeable and available with different numbers of teeth
- Available friction plates: Steel (Touring/Sport) or aluminum (Race)
Available gear ratios:
- Helical gears for original primary wheels:
- PX200 (65T): 22 teeth (-1 tooth)
- PX80/125/150, Cosa: 23 teeth (+2 teeth)
- Straight cut for Polini primary gears:
Additional highlight: The wave spring ensures even pressure plate guidance thanks to its flat, large-dimensioned design and can be adjusted with the enclosed washers.
Conclusion: The Polini HT Clutch is a well thought-out, high-performance clutch that offers perfect control, durability and flexibility for all riding styles - and at a fair price. Ideal for riders who want to take their Vespa to the next level!
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