EXT

E-Storia Trunnion Coil Shock

EXT E-Storia Trunnion Coil Shock is a heavy-duty, e-bike–dedicated enduro rear shock built to handle higher system weight and the added torque loads of e-MTB riding while keeping the ride composed on long, rough descents. Its wide tuning range, controlled bottom-out support, and pedaling-friendly lockout make it a strong choice for riders who want coil traction without giving up adjustability or consistency.

Tuning and ride-feel advantages for modern e-MTB enduro builds

• e-MTB-optimized 4-way damping control - Proprietary adjustment system targets the demands of heavier bikes, with external control of LSC, HSC, LSR, and LOK to balance support, traction, and stability
• LOK 2.0 two-way lockout with blow-off - Tunable lockout helps improve pedaling efficiency across mixed surfaces, while the blow-off valve adds protection if the lever is left engaged when the trail drops in
• HBC bottom-out circuit - Increases damping force in the last 20% of stroke for added control on hard compressions, helping riders run a lower spring rate for improved compliance and traction without giving up end-stroke support
• Integrated reservoir head with large-volume bladder - Supports consistent damping performance under heat and repeated impacts common to long e-bike descents
• Negative spring top-out control - Reduces harsh top-out feel and helps keep the bike platform more stable and predictable when unloading over choppy terrain
• Durability-focused internals - CrMo shaft with low-friction coating and high viscosity index oil are chosen for smooth action and consistent feel across changing temperatures and ride conditions

Note: Coil spring and mounting hardware are sold separately.