Polini HT ‘For Race’ Vespa PX clutch

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 designed for demanding riders and is a true highlight on the clutch market. Polini embraces the trend of innovative reverse clutch technology, as used in the high-end Kingwelle clutch, and offers the HT Clutch, in which the light hub, rather than the heavier clutch basket, is directly connected to the crankshaft. The result? Reduced inertia, allowing smoother, faster, and more precise gear changes.

Optimized Design for Best Performance

• Lightweight Aluminum Construction: Both the clutch basket and pad carrier are made of high-quality aluminium, reducing weight and enhancing performance.
• Needle Bearing: A needle-bearing hub minimizes friction and further improves shifting behaviour.
• Aluminum Friction Plate Option: For racing, Polini offers optional aluminium friction plates, which provide excellent grip-ideal for maximum performance on the track.

Customizable Features

• Adjustable Spring Tension: The spring tension can be individually adjusted using spacers.
• Replaceable Clutch Gear: The steel gear is screwed to the aluminium basket and can easily be swapped for models with more or fewer teeth as needed.
• Primary Gear Adjustments: Polini offers both straight and helical clutch gears for different primary gear ratios, allowing the setup to be optimally tailored to the specific model.

Technical Details at a Glance:

• Aluminum basket and hub for low weight
• Needle bearing for optimal shifting
• Spring tension adjustable with spacers
• Wave spring for perfect pressure plate guidance
• Replaceable clutch gear, available in different tooth counts
• Available friction plates: Steel (Touring/Sport) or Aluminum (Race)

Available Ratios:

• Helical gear for original primary gears:
  • PX200 (65T): 22 teeth (-1 tooth)
  • PX80/125/150, Cosa: 23 teeth (+2 teeth)
• Straight gear for Polini primary gears:
  • 64ZT: 22, 23, 24 teeth

Additional Highlight: The wave spring, with its flat, large design, ensures even pressure plate guidance and can be adjusted with the included spacers.

Conclusion: The Polini HT Clutch is a well-designed, high-performance clutch that offers perfect control, durability, and flexibility for all riding styles at a fair price. Ideal for riders looking to take their Vespa to the next level!