A high-performance shock that delivers a balance of support and sensitivity at the rear end of the bike. Designed and engineered specifically for lightweight E-motos. COMPATIBILITY* 283 × 80 mm: Fits E-Ride Pro 2.0 / 3.0 & SR (direct mount) Surron Light Bee (linkage mount) Ventus One / One Plus (linkage mount) 79 Bike Pro / GT (linkage mount) CUSTOM ADJUSTABILITY In addition to pre-load and rebound adjustment, the ER30 features the CTS (Compression Tuning System), a patented Formula / TECH Suspension innovation that allows fast, tool-free tuning of low- to mid-speed compression behavior. Spring rate options: 78.8 N/mm (standard) — suitable for average-weight riders 105.6 N/mm (optional) — recommended for heavier riders or harder riding conditions PERFORMANCE FEATURES Piggyback Reservoir: Increased oil volume improves thermal stability during long or aggressive riding. Internal Floating Piston (IFP) with Dual Seals: Prevents oil and gas mixing for consistent damping and long-term reliability. High-Profile MDU Bumper: Enhances end-stroke progression and increases bottom-out resistance. DU Bushings: Provides smooth, low-friction articulation with excellent durability for high-load off-road use.