POLINI D.3.6 Contrast Spring Evo-Slider YAMAHA
for BENELLI, APRILIA, MBK, BETAMOTOR, ITALJET, MALAGUTI BOOSTER SPIRIT
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FIND YOUR BIKE - compatibility table
-15%
Special Price €13.40 Regular Price €15.79The POLINI D.3.6 Evo-Slider contrast spring is a fundamental component for optimizing the operation of the variator group, especially in the presence of transformation kits that significantly increase the engine's power and torque. This spring is designed to tackle the challenges of belt slippage and to ensure that the movable rear sheave can effectively counteract the movement of the pulley mounted on the crankshaft.
POLINI contrast springs offer an increase in load compared to the stock springs: 10% for the blue version (MaxiScooters), 7% for the white (Scooters 50), and 15% for the blue (Scooters 50). It is important to note that the use of springs with increased load must be carefully evaluated; ideally, one should use the spring that allows for the best power transmission with the lowest possible load. Springs with high tension can trap the belt between the pulleys, increasing wear and reducing transmission efficiency.
The Evo Slider system, made from special wear-resistant and self-lubricating material, allows the spring to move smoothly and consistently during the variator's excursion. This innovative design helps to improve the overall performance of the vehicle, ensuring a more responsive response and greater component durability.
For installation, it is necessary to remove the transmission cover and follow specific instructions to ensure a correct installation. Make sure to check the condition of the transmission belt and the proper functioning of the entire variator group before proceeding with the spring replacement.
- Load increase: 10% for the blue version (MaxiScooters)
- Load increase: 7% for the white (Scooters 50)
- Load increase: 15% for the blue (Scooters 50)
- Special wear-resistant and self-lubricating material
- Innovative design to improve overall performance
- Ensures a more responsive response
- Increases component durability
- Requires removal of the transmission cover for installation
- Check the condition of the transmission belt necessary before replacement
| Made in | Italy |
|---|---|
| Color | Blue |


