
FOX · Factory Race Series
Polaris Switchback — 2.0 Factory Race Series (Ski)
$1,399.99
In stock — ships from Southside
FOX Quick Switch (QS) coil shocks for trail/crossover applications provide the same performance advantage FOX is known for in the backcountry. Ride harder with less fatigue without a compromise of durability, and experience a new sense of control on the snow thanks to velocity and position-sensitive damping technology. Quickly adjust the compression damping with FOX's QS3 to suit snow conditions. Three positions keep the gloves on and the adjustment simple — focus on riding instead of counting clicks. FOX's position-sensitive damping technology, Rifle Bore, is applied to the Factory Race Series rear track shock. Spiral grooves inside the shock allow oil to flow around the main piston, reducing damping force in the ride zone for a plush feel. The grooves terminate through the final 30% of travel, forcing oil through the main piston for a significant increase in bottom-out resistance to cushion hard hits.
Questions on fitment? Talk to our team — professional FOX service available in-house.
Key Features
- Optimized lightweight spring & shock design
- FOX ice scraper technology (FIST)
- One-piece, aluminum mounting hardware
- High-flow velocity-sensitive damping
- Rifle Bore technology (rear track shock only)
- Fully rebuildable and re-tunable
- Internal floating piston (IFP)
Specifications
- Part Number
- 850-04-005
- Series
- Factory Race
- Top Mount
- Eyelet
- Bottom Mount
- Eyelet
Vehicle Fitment
Confirm this kit fits your Polaris — 56 models supported.
| Model | Model Years |
|---|---|
| 550 INDY Adventure 144 | 2021–2023 |
| 550 INDY Adventure 155 | 2021–2023 |
| 600 INDY Adventure 137 | 2021 |
| 600 INDY XC 129 | 2019, 2021 |
| 600 INDY XC 137 | 2021 |
| 600 INDY XCR | 2021 |
| 600 Rush PRO-S | 2015–2019 |
| 600 Rush XCR | 2017–2019 |
| 600 SwitchBack Assault 144 | 2017–2019, 2021 |
| 600 SwitchBack SP 144 | 2017–2019 |
| 650 INDY Adventure 137 | 2022–2026 |
| 650 INDY Adventure 137 1.25 IR | 2027 |
| 650 INDY Adventure 137 1.35 | 2027 |
| 650 INDY Adventure X2 137 | 2023 |
| 650 INDY VR1 129 | 2021–2023 |
| 650 INDY VR1 137 | 2021–2027 |
| 650 INDY XC 129 | 2022–2024 |
| 650 INDY XC 137 | 2022–2024, 2026–2027 |
| 650 INDY XC Launch Edition 129 | 2021 |
| 650 INDY XC Launch Edition 137 | 2021 |
| 650 INDY XCR 128 | 2022–2025 |
| 650 INDY XCR 129 | 2026–2027 |
| 650 INDY XCR 136 | 2022–2025 |
| 650 INDY XCR 137 | 2026–2027 |
| 650 SwitchBack Assault 146 | 2021–2025 |
| 650 SwitchBack XC 146 | 2022–2026 |
| 800 INDY XC 129 | 2019–2020 |
| 800 Rush PRO-S | 2015–2020 |
| 800 Rush PRO-S LE | 2016 |
| 800 Rush PRO-X | 2015–2018 |
| 800 Rush XCR | 2017–2018 |
| 800 SwitchBack Assault 144 | 2017–2020 |
| 850 INDY Adventure 137 | 2021–2023 |
| 850 INDY VR1 129 | 2021–2023 |
| 850 INDY VR1 137 | 2021–2027 |
| 850 INDY XC 129 | 2019–2024 |
| 850 INDY XC 137 | 2020–2024, 2026–2027 |
| 850 INDY XC Launch Edition 129 | 2021 |
| 850 INDY XC Launch Edition 137 | 2021 |
| 850 INDY XCR | 2021–2022 |
| 850 INDY XCR 128 | 2023–2025 |
| 850 INDY XCR 136 | 2022–2025 |
| 850 Rush PRO-S | 2019–2020 |
| 850 Rush XCR | 2019 |
| 850 SwitchBack Assault 144 | 2019–2021 |
| 850 SwitchBack Assault 146 | 2021–2025 |
| 850 SwitchBack XC 146 | 2022–2024, 2026 |
| Patriot 9R SwitchBack Assault 146 | 2025 |
| Patriot Boost SwitchBack Assault 146 | 2023–2025 |
| ProStar S4 INDY Adventure 137 | 2023–2026 |
| ProStar S4 INDY Adventure 137 1.35 | 2027 |
| ProStar S4 INDY Adventure X2 137 | 2023 |
| ProStar S4 INDY SP 137 | 2026–2027 |
| ProStar S4 INDY XC 129 | 2023–2024 |
| ProStar S4 INDY XC 137 | 2023–2024, 2026–2027 |
| ProStar S4 INDY XC 137 7S | 2027 |
Ride harder with FOX
Add this kit to your cart, or stop in for professional FOX installation and tuning at Southside.