Goldstar Adjustable Clutch Weights (44–58g) for Ski-Doo 850 E-TEC pDrive (Long Track / Mountain) // SKU: 05-GSW-4458

SKU: 05-GSW-4458

Primary Clutch Compatibility: Ski-Doo pDrive Primary Drive Clutches

Adjustment Range: 44g (base bare weight) up to 58g (fully loaded)

Primary Application: Ski-Doo REV Gen4 & Gen5 850 E-TEC mountain snowmobiles running 2.0" or deeper lug tracks.

Maximize track speed and throttle recovery in deep backcountry powder with Bikeman Performance Goldstar Adjustable Clutch Weights. Engineered specifically for the roller-bearing pDrive primary clutch on Ski-Doo 850 E-TEC mountain sleds, these weights feature an aggressive mountain cam profile that loads the engine hard on initial throttle crack while promoting instantaneous backshifting the second you let off in technical tree lines.

Goldstar weights eliminate the frustration of tiny set screws, stripped hex sockets, and messy thread-locking compounds. Our magnetic adjustment system utilizes high-strength neodymium magnetic slugs that snap securely into deep recessed pockets on each weight arm. Adjusting target shift RPM for changing elevations or snow conditions takes only minutes—simply pop magnets in or out right through the pDrive clutch openings without removing the clutch or weight pins.

To withstand extreme mountain riding conditions, every Goldstar weight undergoes our proprietary 5-step metal treating process. This specialized multi-stage heat treat and surface conversion creates a hard, low-friction exterior that prevents galling against pDrive rollers, resists moisture and salt corrosion, and eliminates the rapid surface wear common to bare-steel aftermarket weights.

Key Performance Features

• Mountain-Optimized Cam Profile: Delivers explosive off-idle track spin to jump on top of the snow, combined with razor-sharp backshift response when navigating tight trees and sidehills.
• Tool-Free Magnetic Adjustment: High-power magnetic slugs snap directly into recessed pockets—no loose set screws, Allen wrenches, or thread lock required.
• Wide 44g–58g Tuning Window: Allows micro-tuning in small gram increments to match specific elevations (from sea level to 12,000+ ft), track lengths, and engine modifications.
• Proprietary 5-Step Surface Treatment: Multi-stage heat treatment and protective surface conversion shields against rust, moisture, and premature roller wear.
• Maintains Factory Clicker Utility: Works seamlessly alongside the OEM pDrive clicker adjustment system for rapid trailside RPM fine-tuning.
• Essential Kit Component: This is the exact primary weight set included in our Ski-Doo 850 E-TEC Long Track High Elevation Stage 2 Clutch Kit.

Product Specifications & Contents

• Included in Set: (3) Goldstar Adjustable pDrive Clutch Weights, complete neodymium magnet tuning pack, and comprehensive setup chart.
• Base Weight (Empty): 44.0 grams per arm.
• Maximum Loaded Weight: 58.0 grams per arm.
• Vehicle Fitment: 2017+ Ski-Doo REV Gen4 and Gen5 850 E-TEC Summit, Freeride, and deep-lug Backcountry models equipped with the factory pDrive primary clutch.