The Eibach EMS Rear Spring Kit optimizes Honda CRF450X motocross performance. Crafted from high-tensile steel, this kit includes a rear spring tailored for CRF450X dirt bikes, enhancing traction and stability. Designed for racing or trail riding, it ensures precise suspension response. Professional installation with compatible shocks is required. Powder-coated for corrosion resistance, it includes a limited lifetime manufacturer warranty.