SPI Clutch kit Performance Trail Ski Doo MXZ X-RS 850 Turbo R 0-3000ft

Straightline Performance Performance Trail clutch kit for Ski-Doo 850 Turbo R Competition and Backcountry X-RS. Calibrated for 0–3,000 ft / approx. 0–914 m elevation, its adjustable clutch calibration improves launch, throttle response, power transfer and belt efficiency for trail riding. The manufacturer specifies a 137 in / 348 cm track and 27/49 gearing with 9-tooth drivers for the Competition model, and a 146 in / 371 cm track with 27/45 gearing and 8-tooth drivers for Backcountry X-RS. Check model-specific gearing before fitting.

Fitment: 2024+ Competition 850 Turbo R; 2025+ Backcountry X-RS 850 Turbo R
Package includes: performance trail clutch kit with adjustable weights and calibrated clutch components
Dimensions: 11 × 9 × 6 in / 27.94 × 22.86 × 15.24 cm.