Features: 1.High Compatibility: Fit for most Chinese 70cc 90cc 110cc 125cc 150cc dirt pit bike ATV go kart scooters and moped quad, and many other bikes with similar dimensions and poundage. 2.Comfortable Riding Experience: The rear suspension shock absorber can deliver a smoother riding experience and better overall damping management to improve your riding comfort. 3.Adjustable Spring Damper: Motorcycle rear shock absorber is designed with adjustable spring, you can adjust the strength to suit you better, to deal with different road conditions. 4.High Accuracy: Mounting hole inner diameter is about 10mm/0.39in, spring diameter is 11mm/0.43in, hole center distance is 285mm and overall length is 320mm, ideal for upgrading your motorcycles and off road vehicles. 5.Durable Construction: Motorcycle rear shock damper is made of high quality CNC aluminum alloy, high strength steel and high performance spring. Waterproof and rustproof, high accuracy and durable. Specification: Item Type: Motorcycle Rear Shock Absorber Material: CNC aluminum alloy, high strength steel, high performance spring Overall Length: Approx. 320mm/12.6in Hole Center Distance: Approx. 285mm/11.2in Mounting Hole Inner Diameter: Approx. 10mm/0.39in Spring Diameter: Approx. 11mm/0.43in Rated Load: 980lbs Mounting Hole Thickness: Approx. 20mm/0.8in Adjustable Spring Pressure: You can adjust it according to your own load (Please note that you must use an adjustment tool, not included, otherwise it is easy to cause finger loss) Application: Universal for 285mm mounting hole distance for motorcycles, ATVs, off road vehicles, scooters, etc. Fit for most 70cc 90cc 110cc 125cc 150cc dirt pit bike ATV go cart scooters and moped quad, and fits many other bikes with similar dimensions and poundage. Fit for most of the Chinese brands ATVs and Go Karts, such as replacement for TaoTao, replacement for Buyang, replacement for Coolsport, replacement for Lifan, replacement for Tank, replacement for SUNL, replacement for Redcat, replacement for Eagle, etc.