Fox

MY27 Float X Factory Trunnion Rear Shock

Fox MY27 Float X Factory Trunnion Rear Shock is a high-control, all-mountain/trail air rear shock built for riders who want coil-like consistency with the tuning range and efficiency of air. Its piggyback reservoir and pressure-balanced monotube design are aimed at sustained, heat-managed performance on long descents, while the wide adjustability makes it easy to match support and traction to terrain and riding style.

What sets this trunnion-mount shock apart

• Piggyback reservoir + monotube architecture - Helps maintain damping consistency on extended, rough descents by better managing heat and oil flow
• Pressure-balanced design with high-flow main piston - Delivers a more controlled feel through repeated hits, with smoother response when speeds and impacts increase
• 2-position firm mode switch - Adds a quick-access firmer setting for climbs and smoother transitions without giving up trail sensitivity in open mode
• Wide external damping adjustment - 11-click LSC and 16-click LSR make it straightforward to fine-tune cornering support, mid-stroke control, and recovery speed
• Large EVOL air chamber (max 350 psi) - Supports lower operating pressures and a broad tuning window for traction, support, and ride feel across rider weights and leverage curves
• Factory Series Kashima coating + updated bumpers - Kashima-coated surfaces reduce friction for improved small-bump sensitivity, while updated top-out and bottom-out bumpers help refine feel at the ends of travel

Mounting hardware and sensors are sold separately.