The Straightline Performance Polaris RMK, SKS, and Assault 850 Low Elevation Boondocking Clutch Kit is engineered specifically for stock exhaust machines operating between sea level and 3,000 feet elevation. Featuring Straightline's proven fully adjustable weight kit, two custom-calibrated clutch springs, and a custom-designed helix, this complete package delivers stronger acceleration, improved throttle response, quicker backshift, and superior deep snow performance for technical backcountry riding.