Clutch 8 Gram Shift Arm Race Weights, Set of 8, for TAPP PrimaryDESCRIPTION Designed for higher horsepower UTV's, TAPP Primary Clutch Race Weights weigh 8 grams each, which will allow you to add 16 grams to each arm using the 2. 00" Socket Head Screws. IMPORTANT As with all other adjustments, do this evenly and only in pairs across from each other, failure to do so will result in an imbalance of the clutch and possible failure. HARDWARE DIMS WEIGHT Race Weight (8) . 250 (") 8 grams