The FOX 36 E‑Optimized Factory series is purpose-built for the increased demands of modern e‑MTBs, delivering enhanced durability, control, and tunability without sacrificing the responsiveness and ride quality FOX is known for. Designed around the proven 36 chassis, these forks are reinforced to handle higher system weights, sustained impacts, and the torque associated with electric mountain bike riding. At the core of the lineup are two damper options—GRIP X and GRIP X2—each tailored to different riding styles and performance expectations. The E‑Optimized FOX 36 features a strengthened chassis and updated internals to improve longevity under heavier loads and extended ride times. Increased bushing overlap enhances fore-aft stiffness and tracking, while the FLOAT EVOL air spring provides a supple initial stroke with strong mid-stroke support. The result is a fork that maintains traction and composure across rough terrain, even on long, high-speed descents.

• GRIP X2 is the most tunable, supportive and smoothest descent-focused damper FOX has created so riders reap the benefits of sitting higher in the travel while tires stay glued to the ground, cornering with increased traction and experience reduced fatigue
• Generative design-assisted lower leg arch shape increases torsional stiffness by 20%, while reducing overall material
• Additional 30mm bushing overlap than the prior model 36, reduces chassis friction, increasing stiffness and boosting performance
• New compliant FLOAT EVOL air spring design allows for a slight misalignment under load, reducing chassis friction noticeably
• Lower leg bypass channels were relocated 90° inboard to a lower stress area, reducing dynamic friction under bending forces
• Double-butted stanchion (on damper side) shaves weight, helping us achieve goal of zero weight increase
• New air spring top cap for easier air volume adjustments, removable with cassette tool (Sold separately)
• Redesigned bleeders are sleeker and easier to operate
• Kabolt X