Take total control of your TAPP Primary Clutch performance with the Evolution Clutch Standard Weight Kit, an essential tuning solution for riders who want to fine-tune their machine's RPM and shifting behavior across all riding conditions. Whether you're chasing quicker acceleration, smoother power delivery, or optimal RPM for your terrain, this kit provides everything you need to customize your clutch’s response. With multiple bolt lengths, set screws, washers, and nylon nuts included, you can precisely adjust weight distribution to refine both low-end engagement and high-speed performance. Ideal for high-performance UTV enthusiasts looking to dial in maximum efficiency and throttle control.
Features:
- Kit includes eight (8) 1/2 inch Allen screws, four (4) 1-1/2 inch Roller Bolts, four (4) 1-3/4 inch Roller Bolts, four (4) 2 inch Roller Bolts, four (4) Nylon Nuts, and 16 regular washers
- Add weight to lower RPM and remove weight to raise RPM
- Weight in the arms of a TAPP primary can be adjusted in two ways: set screws in the arms, and washers on the roller thru bolt
- Set screws in the arms affect the low-speed shift points more than the high speed and will reduce the max RPM
- Weight on the roller axle bolt acts like tip weight in a conventional clutch, affecting the high-speed more than any other part of the curve.
- Allen screws must be added in pairs opposite to one another. Allen screws are .500”, weighing 2.7 grams. Adding two Allen screws will add 5.2 grams. Adding all eight Allen screws will add 20.8 grams.
- 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.
