FOX Factory Race Series QS3 Coil Shock Kits

FOX Technical Performance & Engineering

Key engineered features, technical highlights, and manufacturer specifications

• Fox Factory’s Race Series QS3 coil shock kits represent the latest evolution of the brand’s Factory Series, delivering the lightest‑weight construction in the line while retaining the rugged durability expected for off‑road competition.
• The kits are offered in both Coil and Float configurations and feature the updated MY 26 styling that aligns with current race‑bike aesthetics.
• Each shock incorporates a precision‑machined rifle‑bore cylinder, a design choice that reduces overall mass without compromising structural integrity.
• The core performance advantage stems from the spiral‑groove architecture inside the bore.
• During the primary ride zone, the grooves channel oil around the main piston, softening the damping force for a plush, controllable feel.
• As the suspension approaches the final 30 % of its travel, the grooves terminate, forcing oil through the piston and dramatically increasing bottom‑out resistance to absorb hard impacts.
• QSE‑equipped rear track shocks add an electronic lock‑out mode that engages with a single click of a handlebar‑mounted button, giving riders instant control over rear‑wheel traction when needed.

• Completely redesigned and refined Factory Series Shocks are the lightest yet!
• Available in Coil and Float series with updated MY 26 styling
• Rifle Bore have spiral grooves on the inside of the shock allowing oil to flow around the main piston reducing the damping force in the ride zone for a plush ride
• The grooves end through the final 30% of the travel forcing the oil to flow through the main piston resulting in a significant increase in bottom-out resistance to cushion hard hit
• QSE model rear track shocks include an electronic lock out mode with the simple click of a handlebar mounted button!