Features: 1.Material: Made of high hardness steel alloy and electroplated springs, with oxidation resistance and wear resistance, long term durability, and can adjust the spring pressure by yourself. 2.Function: Rear shock damper is designed to reduce the vibration caused by uneven roads, improve the ride comfort and stability for motorcycle. 3.Wide Adaptability: The shock absorber is widely suitable for approximate 180mm/7.09in mounting center distance electric bike, electric scooter and ATV. 4.High Performance: This suspension provides a smoother ride and better overall damping management with maximum loaded 1500lbs. 5.Fine Workmanship: Professional manufacturing, exquisite workmanship, high reliability, ensures high vibration resistance and long service life. Specification: Item Type: Motorcycle Shock Absorber Material: Steel alloy, spring Eye Center to Center: Approx. 180mm/7.09in Mounting Hole Diameter: Approx. 8mm/0.31in Mounting Hole Thickness: Approx. 24mm/0.94in Loading Capability: 1500lbs Spring Diameter: Approx. 8mm/0.31in Shock Absorber Diameter: Approx. 47mm/1.85in Application: Suitable for approximate 180mm/7.09in motorcycle electric bike ATV scooter