With the growing worldwide success of electric dirt bikes, EXT saw the opportunity to take our extraordinary know-how to EMX suspension. Implementing new custom solutions to achieve the highest performance to our customers. We present the REA, a dedicated damper design for the Sur Ron Ultra Bee. The REA MX includes the following features Robust 40mm Damper Body and 16mm Shaft 4-way adjustable: LSC-HSC-LSR-HBC (Hydraulic Bottom-Out Control) With wide range of adjustability to tune for all riding types. High flow main piston Engineered rebound circuit to separate bump and rebound oil flow – Ultra low-friction coating. User adjustable HBC technology that allows for use of softer main spring rate and provides progressive damping support through the last 15% of stroke. Very low reservoir pressure for maximum sensitivity and low cavitation Very low hysteresis for high dynamic response High turbulent flow for progressive dampening and mid stroke support Low friction seal Secondary bottom out bumper to support end strake events in addition to HBC technology. Low profile rebound knob for easy spring swap. Included with EXT superlight V2 Spring in weights spring available of 450lb, 500lb, 550lb or 600lbs. Comes with specific motorsport spherical bearing mounting hardware for easy bolt in installation.