POLINI Contrast Spring HONDA SH 300

The POLINI contrast spring is a fundamental component for optimizing the operation of the variator group, especially in the presence of high-performance transformation kits. This spring, designed for the rear movable sheave, offers an increase in load compared to the stock spring: 10% for the blue model (MaxiScooters), 7% for the white model (Scooters 50), and 15% for the blue model (Scooters 50).

The use of a spring with increased load is recommended only when necessary, as the best performance is achieved by using the spring that allows for optimal power transmission with the least possible load. It is important to note that springs with higher loads can trap the belt between the pulleys, increasing wear and reducing transmission efficiency.

Additionally, the spring is equipped with the EVO SLIDER, a special wear-resistant and self-lubricating material that ensures constant movement during the variator's shift excursion. Before proceeding with the spring replacement, it is essential to check the wear condition of the belt and the proper functioning of the entire variator group.

• Load increase:
  • 10% for the blue model (MaxiScooters)
  • 7% for the white model (Scooters 50)
  • 15% for the blue model (Scooters 50)
• Designed for the rear movable sheave
• EVO SLIDER material: wear-resistant and self-lubricating
• Optimization of the variator group operation
• Recommended only when necessary to avoid trapping the belt
• Importance of checking the wear condition of the belt
• Checking the proper functioning of the entire variator group