Upgrade your eBike with the EBMX linkage, triangle, and YSS spring bundle. This plug-and-play kit, complete with a bushing kit, fits both stock and upgraded EBMX swing arms. It features high and low-speed compression damping, rebound adjustment, and multiple spring weight options (black and red). Designed for motorbikes, it boasts a large oil reservoir for cooling and superior performance over stock and MTB shocks. Perfect for hard riding and jumping.