Oil-filled GTS coilover shocks tame even the roughest trails with their silky-smooth damping performance. The aluminum shock bodies are threaded for easy ride height adjustments using the spring retaining collar. The special PTFE coating adds unique style to your TRX-4^® and keeps the shocks looking fresh from one adventure to the next. A high-tech titanium-nitride coating on the shock shafts resists scuffing, increases durability, and eliminates "stiction." Shocks come assembled with spring collars. Springs sold separately.