Secondary Clutch Spring for Polaris Boost (RMK Sled Only) - 160-240 // SKU: 05-TP160-240 munchie muffler 2-Stroke Calibrated Spring: Custom-valved specifically

2-Stroke Calibrated Spring: Custom-valved specifically for the rapid vacuum changes of 2-stroke turbo engines to eliminate boost flutter and delayed valve response

Polaris Keys: Fit All CFI  2-stroke snowmobile motors

this spring delivers the precise control you need

SNYPR Adjustable Weights: Designed specifically for the P-Drive clutch

Step4: 60ft lbs

Secondary Clutch Spring for Polaris Boost (RMK Sled Only) - 160-240 // SKU: 05-TP160-240 munchie muffler 2-Stroke Calibrated Spring: Custom-valved specificallySecondary Clutch Spring (160 240) for Polaris RMK Boost SKU: 05 TP160 240 Maximize track power transfer and razor sharp backshifting in deep powder with the Bikeman Performance 160 240 Secondary Clutch Spring for Polaris Patriot RMK Boost snowmobiles. Specifically calibrated for high horsepower turbocharged mountain applications, this spring provides proper secondary sheave side pressure to prevent belt slippage under full boost. Featuring a 160 lb