Fox Racing Quick Switch QS3 Rear Shock Absorber - Trail & Crossover Snowmobile Suspension

Description

Elevate your snowmobile's performance with Fox Racing's QS3 rear shocks, engineered for trail and crossover riders. This advanced suspension system combines velocity-sensitive damping with intuitive adjustments to deliver unmatched control, comfort, and durability in extreme winter conditions.

Key Features

  • Quick Switch 3 (QS3) Technology: Three compression settings let you adapt to changing snow conditions without removing gloves, maintaining control through variable terrain.
  • Position-Sensitive Damping: Rifle Bore technology reduces damping force in the ride zone for a plush, responsive feel while increasing bottom-out resistance for harsh impacts.
  • Spiral Groove Design: Internal oil flow channels optimize damping characteristics, providing a smooth ride while enhancing durability under extreme stress.
  • Rebound Damping Adjustment: Fine-tune rebound control to match snow density and riding style for optimal suspension performance.
  • Durable Aluminum/Steel Construction: Lightweight yet robust materials withstand harsh environments while maintaining precise damping response.
  • 14.5" Eye-to-Eye Length: Optimized geometry for balanced suspension travel and rider comfort.

Why Choose This Product

Experience unmatched control and confidence on any trail with Fox's QS3 shocks. The combination of position-sensitive damping, Rifle Bore technology, and easy-to-use QS3 adjustments ensures you stay in command of your snowmobile, whether carving through powder or tackling groomed trails. Durable construction and precise engineering deliver long-lasting performance that keeps up with your toughest rides.
SKU: GMDCA77837
MPN: 853-04-001
Category: Suspension
Brand: Fox Racing
Stock: In Stock
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Elevate your snowmobile's performance with Fox Racing's QS3 rear shocks, engineered for trail and crossover riders. This advanced suspension system combines velocity-sensitive damping with intuitive adjustments to deliver unmatched control, comfort, and durability in extreme winter conditions.

Key Features

  • Quick Switch 3 (QS3) Technology: Three compression settings let you adapt to changing snow conditions without removing gloves, maintaining control through variable terrain.
  • Position-Sensitive Damping: Rifle Bore technology reduces damping force in the ride zone for a plush, responsive feel while increasing bottom-out resistance for harsh impacts.
  • Spiral Groove Design: Internal oil flow channels optimize damping characteristics, providing a smooth ride while enhancing durability under extreme stress.
  • Rebound Damping Adjustment: Fine-tune rebound control to match snow density and riding style for optimal suspension performance.
  • Durable Aluminum/Steel Construction: Lightweight yet robust materials withstand harsh environments while maintaining precise damping response.
  • 14.5" Eye-to-Eye Length: Optimized geometry for balanced suspension travel and rider comfort.

Why Choose This Product

Experience unmatched control and confidence on any trail with Fox's QS3 shocks. The combination of position-sensitive damping, Rifle Bore technology, and easy-to-use QS3 adjustments ensures you stay in command of your snowmobile, whether carving through powder or tackling groomed trails. Durable construction and precise engineering deliver long-lasting performance that keeps up with your toughest rides.
SKU GMDCA77837
MPN 853-04-001
Brand Fox Racing
Category Suspension
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Reviews

Make Model Years
Polaris RMK / Indy / Switchback (Trail/Crossover) 2015-2024
Ski-Doo Renegade / Summit (select models) 2014-2024
Arctic Cat ZR / M / XF (Trail) 2016-2024

Frequently Asked Questions

Measure your OEM shock eye-to-eye. Common lengths: 14.1", 14.5", 15.1". Check fitment chart or contact retailer.

Yes, Fox offers rebuild kits and service through authorized centers.

No, uses your OEM springs or aftermarket. Spring rate matching recommended.

Designed for trail/crossover. For deep powder/mountain, consider Fox Float series.

Installation Guide

Difficulty Medium
Est. Time 45 min

Tools Required

  • Socket set (14mm-19mm)
  • Torque wrench
  • Spring compressor
  • Pry bar

Pro Tips

  • Match shock length exactly to OEM spec
  • Apply anti-seize to linkage points
  • Set rebound to factory spec initially

Common Mistakes to Avoid

  • Not compressing spring properly
  • Incorrect torque on mount bolts
  • Failing to bleed air from shock

Comparison vs Stock/OEM

Aftermarket monotube design vs OEM twin-tube

Improvements

  • Superior damping control
  • Better heat dissipation
  • Adjustable rebound tuning
  • Longer service life

Considerations

  • Higher initial cost
  • Requires proper spring matching

Durability & Warranty

Expected Lifespan 3-5 seasons heavy use / 2000+ hours
Warranty 1 year manufacturer limited warranty
Maintenance Annual nitrogen recharge check, clean/lube shaft yearly, rebuild every 2-3 years

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