Polini compression springs +15% / +30% - U243.020

General description

• High quality workmanship
• A must-have component when adjusting the drive
• Ensures stable operation even at high temperatures

Note that a hard spring will transmit more torque and a softer spring will have a better effect on performance, but there will be a higher probability of belt slippage. It is necessary to choose between a soft, medium and hard spring, and it should also be remembered that the hardness of the spring affects the engine speed (the harder the spring, the higher the speed). White spring softer, blue spring harder.