Upgrade your snowmobile suspension with the FOX Burandt Series 1.5 FLOAT 3 QS3 Ski Shock Kit, manufacturer part number 850-21-266 and vendor part number 530-1275. Developed in collaboration with professional snowmobiler Chris Burandt, this kit is tuned for aggressive backcountry riding and demanding trail conditions. The 1.5 FLOAT 3 QS3 design provides adjustable performance so riders can tailor compression damping to changing terrain and riding preferences.
FOX Quick Switch technology allows convenient compression adjustment on the fly, while the ski shocks also provide rebound adjustment for more precise suspension control. QS3 adjustment offers three selectable settings, helping riders quickly adapt the suspension for plush comfort, improved handling, or increased support during aggressive maneuvers. Position-sensitive damping uses spiral-groove bypass technology to deliver a controlled, compliant feel through the initial travel zone and increased bottom-out resistance during the final portion of travel.
FOX Ice Scraper Technology, also known as FIST, helps reduce snow and ice buildup around the shock to support consistent operation in cold-weather conditions. This kit includes a pair of ski shocks and is designed for direct-fit installation on compatible Polaris snowmobiles. Confirm model year, engine configuration, and track application before ordering.
Fitment includes the 2012 and 2013 Polaris 600 Pro-RMK 155, 2016 and 2017 Polaris 600 Pro-RMK 155, 2018 Polaris 600 Pro-RMK 155 and 800 SKS 155, 2019 Polaris 600 Pro-RMK 155, 800 SKS 155, 850 Pro-RMK 155, and 850 SKS 146. The FOX brand and Burandt Series tuning provide a purpose-built suspension solution for riders seeking responsive adjustment and reliable performance in challenging snow conditions.
Features:
- Quick Switch technology allows compression damping adjustment while riding
- QS3 system provides three selectable compression settings
- Ski shocks include compression and rebound adjustments
- Position-sensitive damping delivers a plush initial stroke and increased bottom-out resistance
- FOX Ice Scraper Technology helps prevent snow and ice buildup
- Developed with professional snowmobiler Chris Burandt for aggressive riding
- Ski shock kit includes a matched pair of shocks
- Fits select Polaris 600 Pro-RMK, 800 SKS, 850 Pro-RMK, and 850 SKS snowmobiles
Fitment:
2012 Polaris 600 Pro-RMK 155"
2013 Polaris 600 Pro-RMK 155"
2014 Polaris 600 Pro-RMK 155"
2015 Polaris 600 Pro-RMK 155"
2016 Polaris 600 Pro-RMK 155"
2017 Polaris 600 Pro-RMK 155"
2018 Polaris 600 Pro-RMK 155"
2018 Polaris 800 Pro-RMK 155 3"
2018 Polaris 800 Pro-RMK 155"
2018 Polaris 800 Pro-RMK 163 3"
2018 Polaris 800 Pro-RMK 163"
2018 Polaris 800 Pro-RMK 174"
2018 Polaris 800 RMK Assault 155"
2018 Polaris 800 SKS 146"
2018 Polaris 800 SKS 155"
2019 Polaris 600 Pro-RMK 155"
2019 Polaris 800 Pro-RMK 155"
2019 Polaris 800 Pro-RMK 163"
2019 Polaris 800 Pro-RMK 174"
2019 Polaris 800 RMK Assault 155"
2019 Polaris 800 SKS 146"
2019 Polaris 800 SKS 155"
2019 Polaris 850 Pro-RMK 155"
2019 Polaris 850 Pro-RMK 163"
2019 Polaris 850 Pro-RMK 174"
2019 Polaris 850 SKS 146"
2019 Polaris 850 SKS 155"
2021 Polaris 600 Pro-RMK 155"
2021 Polaris 850 Pro-RMK 155 3"
2021 Polaris 850 Pro-RMK 155"
2021 Polaris 850 Pro-RMK 163 3"
2021 Polaris 850 Pro-RMK 163"
2021 Polaris 850 Pro-RMK QD2 155 2.75"
2021 Polaris 850 Pro-RMK QD2 155 3"
2021 Polaris 850 Pro-RMK QD2 163 3"
2021 Polaris 850 Pro-RMK QD2 165 2.75"
2021 Polaris 850 Pro-RMK QD2 174"
2021 Polaris 850 RMK KHAOS 155 3"
2021 Polaris 850 RMK Khaos 155"
2021 Polaris 850 RMK KHAOS QD2 155 2.75"
2021 Polaris 850 RMK KHAOS QD2 155 3"
2021 Polaris 850 RMK KHAOS QD2 163 3"
2021 Polaris 850 RMK KHAOS QD2 165 2.75"
2021 Polaris 850 SKS 146"
2021 Polaris 850 SKS 155"
2022 Polaris 850 Pro-RMK Matryx 155"
2022 Polaris 850 Pro-RMK Matryx Slash 155 2.75"
2022 Polaris 850 Pro-RMK Matryx Slash 155 3"
2022 Polaris 850 Pro-RMK Matryx Slash 163 3"
2022 Polaris 850 Pro-RMK Matryx Slash 165 2.75"
2022 Polaris 850 RMK Khaos Matryx 155"
2022 Polaris 850 RMK Khaos Matryx Slash 146"
2022 Polaris 850 RMK Khaos Matryx Slash 155"
2022 Polaris 850 RMK Khaos Matryx Slash 163 3"
2022 Polaris 850 RMK Khaos Matryx Slash 165 2.75"
2022 Polaris Patriot Boost Pro-RMK Matryx Slash 163 2.75"
2022 Polaris Patriot Boost Pro-RMK Matryx Slash 165 2.75"
2023 Polaris 650 Pro-RMK 155"
2023 Polaris 850 Pro-RMK 155"
2023 Polaris 850 RMK Khaos 155"
2023 Polaris 850 RMK Khaos Slash 163.3"
2023 Polaris 850 RMK Pro Slash 155"
2023 Polaris 850 RMK Pro Slash 163"
2023 Polaris 850 RMK Pro Slash 165"
2023 Polaris Patriot 9R Pro-RMK Slash 155"
2023 Polaris Patriot 9R Pro-RMK Slash 163.3"
2023 Polaris Patriot 9R Pro-RMK Slash 165"
2023 Polaris Patriot 9R RMK Khaos Slash 155"
2023 Polaris Patriot 9R RMK Khaos Slash 163"
2023 Polaris Patriot 9R RMK Khaos Slash 165"
2023 Polaris Patriot Boost RMK Khaos Slash 163"
2023 Polaris Patriot Boost RMK Khaos Slash 165"
2023 Polaris Patriot Boost RMK Pro Slash 155"
2023 Polaris Patriot Boost RMK Pro Slash 163"
2024 Polaris 650 Pro-RMK 155"
2024 Polaris 650 RMK Khaos Slash 146"
2024 Polaris 850 Pro-RMK 155"
2024 Polaris 850 RMK Khaos 155"
2024 Polaris 850 RMK Khaos Slash 146"
2024 Polaris 850 RMK Khaos Slash 155"
2024 Polaris 850 RMK Khaos Slash 165"
2024 Polaris 850 RMK Pro Slash 155"
2024 Polaris 850 RMK Pro Slash 165"
2024 Polaris Patriot 9R Pro-RMK Slash 155"
2024 Polaris Patriot 9R Pro-RMK Slash 165"
2024 Polaris Patriot 9R RMK Khaos Slash 146"
2024 Polaris Patriot 9R RMK Khaos Slash 155"
2024 Polaris Patriot 9R RMK Khaos Slash 165"
2024 Polaris Patriot Boost RMK Khaos Slash 155"
2024 Polaris Patriot Boost RMK Khaos Slash 165"
2024 Polaris Patriot Boost RMK Pro Slash 155"
2024 Polaris Patriot Boost RMK Pro Slash 165"
2025 Polaris 850 Pro-RMK 155"
2025 Polaris 850 RMK Khaos 155"
2025 Polaris 850 RMK Khaos Slash 155"
2025 Polaris 850 RMK Khaos Slash 165"
2025 Polaris 850 RMK Pro Slash 155"
2025 Polaris Patriot Boost RMK Khaos Slash 155"
2026 Polaris 850 Pro-RMK 155"
2026 Polaris 850 RMK Khaos 155"