Secondary Clutch Spring for Polaris Boost (RMK Sled Only) - 160-240 // SKU: 05-TP160-240

Secondary 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 initial load and a 240 lb finish load, this force curve delivers instantaneous secondary downshifting when jumping on and off the throttle in technical trees and steep terrain. Constructed from premium high-tensile spring steel, it resists heat-induced sag and rate loss through severe mountain riding.

Key Performance Features

• Mountain Boost Calibration: Specially engineered to handle the high torque and rapid backshifting demands of the Patriot RMK Boost in deep snow conditions.

• 160-240 Spring Rate Curve: 160 lb initial load ensures positive belt grip at engagement, while the 240 lb finish load accelerates backshifting and holds target shift RPM.

• Sharp Backshift Response: Eliminates sluggish downshifts and turbo lag during rapid throttle cycling in technical mountain riding.

• High-Tensile Alloy Steel: Built to withstand intense torsional twisting, vibration, and thermal cycling without losing spring tension over time.

Product Specifications

• SKU: 05-TP160-240

• Compatibility: Polaris Patriot RMK Boost Models (Matryx Mountain Chassis)

• Spring Rate: 160 lb Initial Load / 240 lb Finish Load

• Component Type: Secondary Driven Clutch Spring

• Primary Function: Manages secondary clutch shift-out, belt tension, and backshift speed for high-horsepower mountain setups