Polaris Improved Trail (IT) Cam Arms Clutch Weights replicate the factory cam arm clutch weights profile and shift characteristics. Polaris IT Cam Arms Clutch Weights are designed to be used in mountain and high elevation applications. Polaris IT Cam Arms Clutch Weights up-shift and back-shift identically to factory cam arms clutch weights, except they can be adjusted for weight. Polaris IT Cam Arms Clutch Weights match the factory weight gram for gram. You can now adjust the weight of these cam arms in seconds by simply adding or subtracting set screws. It is that easy! This new generation of cam arm clutch weights is manufactured specifically for the new Polaris clutch. The adjustment can be made without the removal of the cam arms clutch weights or drive belt. You can now purchase one set of cam arms clutch weights and have the ability to add up to 8 grams of weight. Each kit comes with an assortment of set screws. Adjustments are made with the included allen wrench.