Fox - Air Shaft Assembly

FOX - AIR SHAFT ASSEMBLY

New for 2026/2027:

The NA3 Glidecore Air Spring uses a brand new architecture that we haven’t seen before from an air spring, using elastomers to separate the air spring from fork flex. All forks flex anytime there is force going through them. Whether that’s from braking, hitting bumps, turning, sprinting, or really anything that happens while riding the bike, the fork will be loaded and conforming to some extent. Typical air springs suffer quite a bit from fork flex, and they bind as the fork chassis twists during normal riding. With the use of elastomers, the Glidecore NA3 air spring is unbothered by this flex, and preserves its supple performance while the fork is flexing. Maintaining alignment is key to buttery smooth suspension performance, and the NA3 air spring keeps your fork operating smoothly no matter what you’re charging through.

Available in the following models;

F-820-02-745-KIT - Fox Podium FLOAT NA3 Glidecore 170mm - New chassis only (2026+)

F-820-02-746-KIT - Fox Podium FLOAT NA3 Glidecore 160mm - New chassis only (2026+)

F-820-02-747-KIT - Fox Podium FLOAT NA3 Glidecore 150mm - New chassis only (2026+)

F-820-02-753-KIT - Fox 40 FLOAT NA3 Glidecore 203mm - Backwards Compatible (2021-2027)

F-820-02-754-KIT - Fox 40 FLOAT NA3 Glidecore 190mm - Backwards Compatible (2021-2027)

F-820-02-751-KIT - Fox 38 FLOAT NA3 Glidecore 180mm - New chassis only (2027+)

F-820-02-750-KIT - Fox 38 FLOAT NA3 Glidecore 170mm - New chassis only (2027+)

F-820-02-749-KIT - Fox 38 FLOAT NA3 Glidecore 160mm - New chassis only (2027+)

F-820-02-716-KIT - Fox 36 FLOAT NA3 Glidecore 160mm - Backwards Compatible (2021-2026)

F-820-02-715-KIT - Fox 36 FLOAT NA3 Glidecore 150mm - Backwards Compatible (2021-2026)

F-820-02-714-KIT - Fox 36 FLOAT NA3 Glidecore 140mm - Backwards Compatible (2021-2026)

F-820-02-725-KIT - Fox 36 E-OPT FLOAT NA3 Glidecore 160mm - Backwards Compatible (2021-2026)

F-820-02-724-KIT - Fox 36 E-OPT FLOAT NA3 Glidecore 150mm - Backwards Compatible (2021-2026)

F-820-02-722-KIT - Fox 36 E-OPT FLOAT NA3 Glidecore 140mm - Backwards Compatible (2021-2026)

F-820-02-275-KIT - Fox 36 SL FLOAT NA3 Glidecore 140mm - New chassis only (2026+)

F-820-02-274-KIT - Fox 36 SL FLOAT NA3 Glidecore 130mm - New chassis only (2026+)

F-820-02-273-KIT - Fox 36 SL FLOAT NA3 Glidecore 120mm - New chassis only (2026+)