FOX

Adjustments:

Spring preload

QS3–3 position compression

QSR–3 position rebound

Features:

Optimized lightweight spring & shock design

Spiral groove bypass

FOX Ice Scraper Technology (FIST)

One-piece, aluminum spherical bearings

High-flow velocity-sensitive damping

Fully re-buildable and re-valvable

Top Mount: Eyelet

Bottom Mount: Eyelet

Rebuild P/n: FT: 803-01-569; RT: 803-01-571

Reservoir: Piggyback

Front Track Extended Length: 12.6300

Front Track Compressed Length: 8.4600

Front Track Travel: 5.3300

Rear Track Extended Length: 12.6300

Rear Track Compressed Length: 11.6800

Rear Track Travel: 5.3300

Fitment notes: Track (Front & Rear)

• Quick Switch Technology - 3 Position knob to quickly switch between settings
• Simplified adjustment without taking off your gloves
• No more counting clicks or detents in freezing conditions
• Significant changes in ride and handling
• Rebound adjustments result in quicker recovery from consecutive hits and increased traction with more preload.
• Lockout setting results in easier side hilling and predictable climbing (limits weight transfer and trenching)
• Available on select Mountain rear tracks only

(2) Shock assemblies

(1) Pressure gauge 

(4) Flat washers

(1) Bushing

Instructions

• Quick Switch Technology - 3 Position knob to quickly switch between settings
• Simplified adjustment without taking off your gloves
• No more counting clicks or detents in freezing conditions
• Significant changes in ride and handling
• Rebound adjustments result in quicker recovery from consecutive hits and increased traction with more preload.
• Lockout setting results in easier side hilling and predictable climbing (limits weight transfer and trenching)
• Available on select Mountain rear tracks only

(2) Shock assemblies

(1) Pressure gauge 

(4) Flat washers

(1) Bushing

Instructions

• Quick Switch Technology - 3 Position knob to quickly switch between settings
• Simplified adjustment without taking off your gloves
• No more counting clicks or detents in freezing conditions
• Significant changes in ride and handling
• Rebound adjustments result in quicker recovery from consecutive hits and increased traction with more preload.
• Lockout setting results in easier side hilling and predictable climbing (limits weight transfer and trenching)
• Available on select Mountain rear tracks only

(2) Shock assemblies

(1) Pressure gauge 

(4) Flat washers

(1) Bushing

Instructions

• Quick Switch Technology - 3 Position knob to quickly switch between settings
• Simplified adjustment without taking off your gloves
• No more counting clicks or detents in freezing conditions
• Significant changes in ride and handling
• Rebound adjustments result in quicker recovery from consecutive hits and increased traction with more preload.
• Lockout setting results in easier side hilling and predictable climbing (limits weight transfer and trenching)
• Available on select Mountain rear tracks only

(2) Shock assemblies

(1) Pressure gauge 

(4) Flat washers

(1) Bushing

Instructions

FEATURES

- Plug ‘N Play wire harness
- On the fly, push button adjustment
- Preset modes
- LED Back-lit handlebar switch

ADJUSTMENTS

- FLOAT Air Spring
- EVOL Air Chamber
- Chris Burandt specific Intelligent Quick Switch (iQS) 4 programmed ride settings

FEATURES
- Plug ‘N Play wiring harness
- On the fly, push button adjustment
- Instant adjustment reaction timing
- Air and Evol adjustments
- Aluminum alloy mounting hardware
- LED control switch

ADJUSTMENTS

- Intelligent Quick Switch (iQS), 4 programmed ride settings

FEATURES

- Plug ‘N Play wiring harness
- On the fly, push button adjustment
- Instant adjustment reaction timing
- Aluminum alloy mounting hardware
- LED control switch

ADJUSTMENTS

- Intelligent Quick Switch (iQS), 4 programmed ride settings
- Spring preload

The FOX 1.5 ZERO Quick Switch (QS) coil shocks are the next generation of lightweight mountain sled suspension technology. Ride harder in the backcountry with less fatigue without a compromise of durability. Experience a new sense of control on top of the snow due to less outboard weight. 

FOX’s QS technology allows you to adjust the compression and rebound damping with ease to suit the conditions. Three positions keep the adjustment simple, so you focus on the ride instead of counting clicks.  

We designed the coil-sprung mountain shocks with two primary objectives: weight reduction and ride performance. FOX optimizes the 1.5 ZERO coil-sprung shocks through material reduction without a sacrifice of ride quality or structural integrity. Additionally, the coil springs were redesigned to retain the same spring rate but with fewer coils and built from a lighter steel alloy. The shocks maintain a linear feel regardless of temperature fluctuation, which keeps your sled setup quick and simple. The new coils result in a spring with the same performance at half the weight.   

FOX’s position-sensitive damping technology, with origins in desert truck racing, is now applied to the Factory Race Series coil-sprung shocks. Spiral grooves inside the shock allow the oil to flow around the main piston, reducing damping force in the ride zone for a plush feel. The bypass grooves terminate through the final 30% of the travel, forcing oil to only flow through the main piston and providing a significant increase of bottom-out resistance to cushion any hard hits. Our goal was to inspire confidence next time you send it big thanks to the extra support. 

Maximize the power-to-weight ratio of your sled by bolting on FOX’s new mountain shocks.

Adjustments:
Spring preload
QS3 – 3 position compression
QSR – 3 position rebound

Features:
Optimized lightweight spring & shock design
Spiral groove bypass
FOX Ice Scraper Technology (FIST)
One-piece, aluminum spherical bearings
High-flow velocity-sensitive damping
Fully re-buildable and re-valvable

Specifications:
Extended Length: 15.920 in.
Compressed Length: 10.610 in.
Travel: 5.310 in.
Top Mount: Eyelet
Bottom Mount: Eyelet
Reservoir: Piggyback
Fitment notes: Ski

(2) Shock assemblies

Instructions

The FOX 1.5 ZERO Quick Switch (QS) coil shocks are the next generation of lightweight mountain sled suspension technology. Ride harder in the backcountry with less fatigue without a compromise of durability. Experience a new sense of control on top of the snow due to less outboard weight. 

FOX’s QS technology allows you to adjust the compression and rebound damping with ease to suit the conditions. Three positions keep the adjustment simple, so you focus on the ride instead of counting clicks.  

We designed the coil-sprung mountain shocks with two primary objectives: weight reduction and ride performance. FOX optimizes the 1.5 ZERO coil-sprung shocks through material reduction without a sacrifice of ride quality or structural integrity. Additionally, the coil springs were redesigned to retain the same spring rate but with fewer coils and built from a lighter steel alloy. The shocks maintain a linear feel regardless of temperature fluctuation, which keeps your sled setup quick and simple. The new coils result in a spring with the same performance at half the weight.   

FOX’s position-sensitive damping technology, with origins in desert truck racing, is now applied to the Factory Race Series coil-sprung shocks. Spiral grooves inside the shock allow the oil to flow around the main piston, reducing damping force in the ride zone for a plush feel. The bypass grooves terminate through the final 30% of the travel, forcing oil to only flow through the main piston and providing a significant increase of bottom-out resistance to cushion any hard hits. Our goal was to inspire confidence next time you send it big thanks to the extra support. 

Maximize the power-to-weight ratio of your sled by bolting on FOX’s new mountain shocks.

Adjustments:
Spring preload
QS3 – 3 position compression
QSR – 3 position rebound

Features:
Optimized lightweight spring & shock design
Spiral groove bypass
FOX Ice Scraper Technology (FIST)
One-piece, aluminum spherical bearings
High-flow velocity-sensitive damping
Fully re-buildable and re-valvable

Specifications:
Extended Length: 17.610 in.
Compressed Length: 11.680 in.
Travel: 5.930 in.
Top Mount: Eyelet
Bottom Mount: Eyelet
Reservoir: Piggyback
Fitment notes: Ski

Included Items:

(2) Shock assemblies

(1) Air pump

Instructions

The FOX 1.5 ZERO Quick Switch (QS) coil shocks are the next generation of lightweight mountain sled suspension technology. Ride harder in the backcountry with less fatigue without a compromise of durability. Experience a new sense of control on top of the snow due to less outboard weight. 

FOX’s QS technology allows you to adjust the compression and rebound damping with ease to suit the conditions. Three positions keep the adjustment simple, so you focus on the ride instead of counting clicks.  

We designed the coil-sprung mountain shocks with two primary objectives: weight reduction and ride performance. FOX optimizes the 1.5 ZERO coil-sprung shocks through material reduction without a sacrifice of ride quality or structural integrity. Additionally, the coil springs were redesigned to retain the same spring rate but with fewer coils and built from a lighter steel alloy. The shocks maintain a linear feel regardless of temperature fluctuation, which keeps your sled setup quick and simple. The new coils result in a spring with the same performance at half the weight.   

FOX’s position-sensitive damping technology, with origins in desert truck racing, is now applied to the Factory Race Series coil-sprung shocks. Spiral grooves inside the shock allow the oil to flow around the main piston, reducing damping force in the ride zone for a plush feel. The bypass grooves terminate through the final 30% of the travel, forcing oil to only flow through the main piston and providing a significant increase of bottom-out resistance to cushion any hard hits. Our goal was to inspire confidence next time you send it big thanks to the extra support. 

Maximize the power-to-weight ratio of your sled by bolting on FOX’s new mountain shocks.

Adjustments:
Spring preload
QS3 – 3 position compression
QSR – 3 position rebound

Features:
Optimized lightweight spring & shock design
Spiral groove bypass
FOX Ice Scraper Technology (FIST)
One-piece, aluminum spherical bearings
High-flow velocity-sensitive damping
Fully re-buildable and re-valvable

Specifications:
Extended Length: 17.610 in.
Compressed Length: 11.680 in.
Travel: 5.930 in.
Top Mount: Eyelet
Bottom Mount: Eyelet
Reservoir: Piggyback
Fitment notes: Ski

Included Items:

(2) Shock assemblies

(1) Air pump

Instructions

• Sold per pair
• Genuine Kashima Coat
• Samurai Sealing System (SSS)
• EVOL Air Technology
• Aerospace-grade PTFE-lined spherical bearings
• High-flow velocity-sensitive damping
• Chrome silicone negative spring
• Fully re-buildable and re-valveable
• Ultra-lightweight
• Lose up to 6 pounds off your sled when replacing coil spring shocks
• Infinitely adjustable dual air spring - MAIN Air Chamber (ride height), EVOL Air Chamber (bottom-out/roll control)
• Wide-range rebound adjustment
• 3 Position Quick Switch

Specifications:

Extended Length 17.59 in.
Compressed Length 11.79 in.
Travel 5.8 in.

Air Spring Pressures

Main - 70psi
EVOL - 120psi

Top Mount: Eyelet
Bottom Mount: Eyelet
Reservoir: Piggyback

Included Items:

(2) Shock assembly

(1) Shock pump

Instructions