Stage 2 Clutch Kit for Ski-Doo 850 E-TEC (Long Track / Mountain) // SKU: 06-25-LT

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⚙️ KIT CONFIGURATION & COMPONENT SELECTION:

  • Step 1 (Select Elevation): Select your primary operating elevation above to reveal the recommended setup: High Elevation (6,000+ ft) or Low Elevation (0–6,000 ft).
  • Step 2 (Customize Components): Each recommended component is pre-selected by default. If you already own an included item (such as our PTFE washers or an aftermarket top gear), simply switch that individual item's option to remove it from your package and reduce your total price.
  • Track Requirement: Calibrated specifically for Ski-Doo REV Gen4 (2017–2022) and REV Gen5 (2023+) 850 E-TEC mountain sleds running 2.0" or deeper lug tracks (Summit and Freeride).

Base SKU: 06-25-LT (High Elevation: 06-25-201 / Low Elevation: 06-25-202)

Target Operating RPM: 7,900–8,000 RPM

Primary Application: 2017+ Ski-Doo REV Gen4 & Gen5 850 E-TEC mountain snowmobiles equipped with 2.0" to 3.0" lug tracks.

Eliminate belt slippage, lower sheave operating temperatures, and lock in consistent track horsepower with the Bikeman Performance Stage 2 Long Track Mountain Clutch Kit for the Ski-Doo 850 E-TEC. Deep powder resistance, steep technical terrain, and fluctuating elevations place severe strain on the factory pDrive and QRS drive systems. Stock clutching frequently allows erratic belt slip, premature upshift stall into overdrive, and high-temperature rate sag on sustained technical pulls.

Our Stage 2 mountain package is a synchronized drivetrain calibration engineered to match the torque output of the 850 E-TEC twin directly to your riding elevation. By pairing low-drag Goldstar magnetic weights, heavy-duty 5mm hex pivot hardware, progressive helix geometry, calculated spring loads, and low-friction PTFE thrust washers, this system keeps your engine running dead-center in its 7,900–8,000 RPM peak horsepower sweet spot with immediate backshifting the moment you let off in technical tree lines.

Elevation Package Configurations

High Elevation Package (6,000+ ft) [Base SKU: 06-25-201]

Calibrated specifically for high-altitude mountain backcountry riding where atmospheric power loss requires mechanical gear reduction, lighter primary arm mass, fine-tuning pivot bolts, and aggressive belt-pinching helix ramps:

Low Elevation Package (0–6,000 ft) [Base SKU: 06-25-202]

Calibrated for sea-level to mid-elevation riding where full atmospheric horsepower requires heavier primary mass, increased secondary spring side-pressure, and precise pivot-bolt tuning:

Key Performance Benefits

  • Instantaneous Backshift Recovery: Snaps down on the drive belt the millisecond you release throttle, preventing the engine from falling out of its powerband in technical tree lines and deep powder.
  • Significant Belt Temperature Drop: Synchronized helix angles, calculated spring rates, and PTFE thrust washers prevent belt scrub and clutch heat-soak.
  • Tool-Free Trailside Tuning: Goldstar magnetic weights allow fast gram-weight changes directly through the clutch face without disassembling ramps or pins.
  • Consistent Full-Shift RPM: Eliminates RPM fade on long, steep climbs, holding target 7,900–8,000 operating RPM across changing snow conditions.

Vehicle Fitment & Compatibility

  • Compatible Sled Models: Fits all 2017+ Ski-Doo REV Gen4 and Gen5 850 E-TEC mountain snowmobiles running 2.0" or deeper lug tracks:
    • Ski-Doo Summit (146, 154, 165, 175)
    • Ski-Doo Summit Expert & Edge Packages
    • Ski-Doo Freeride (146, 154, 165 with 2.5"+ lug tracks)
  • Naturally Aspirated Compatibility: Engineered specifically for naturally aspirated 850 E-TEC models. Factory 850 Turbo / Turbo R sleds require turbo-specific clutch components.
  • Short Track Sleds: For MXZ, Renegade, or Backcountry models running track lugs under 2.0", select our Ski-Doo 850 Short Track / Trail Clutch Kit.