POLINI Contrast Spring D.4.2 Honda

The POLINI D.4.2 contrast spring is an essential component for optimizing the operation of the variator group, particularly in situations of high power increase. This product is designed to tackle the challenges posed by advanced transformation kits, where the transmission belt may slip or the rear movable half-pulley may not adequately counteract the movement of the pulley mounted on the crankshaft.

The POLINI contrast springs offer an increased load compared to the standard ones, with a 10% increase for blue springs intended for MaxiScooters, 7% for white springs for 50cc scooters, and 15% for blue springs for 50cc scooters. It is important to emphasize that the use of springs with increased load should only occur when necessary, as the best performance is achieved using springs that ensure optimal power transmission with the least possible load.

Furthermore, the EVO SLIDER system, made from special wear-resistant and self-lubricating material, allows the spring to slide consistently during the variator's shifting travel, improving the efficiency and durability of the system. Before proceeding with the spring replacement, it is advisable to check the wear condition of the belt and the proper functioning of the entire variator group.

• Increased load of 10% for blue springs (MaxiScooters)
• Increased load of 7% for white springs (50cc scooters)
• Increased load of 15% for blue springs (50cc scooters)
• Special wear-resistant material for the EVO SLIDER system
• Self-lubricating for consistent sliding
• Optimization of the variator group operation
• Designed for advanced transformation kits
• Recommended to check the wear condition of the belt
• Importance of using springs with optimal load