High-performance shock absorber: The suspension provides smoother driving and better overall damping management, improving driving comfort, motorcycle handling, and driving safety Product fitment: general-purpose air shock absorber, suitable for most 150cc~750cc streetcars, Karting (karting), scooters, and Moped Quad (ATV), with a force of 320mm. A great choice for upgrading your motorcycles and off-road vehicles. Product material: CNC aluminum alloy + high-strength steel, high-performance spring, and there is a nitrogen reservoir. Steel anti-corrosion, waterproof, anti-rust, personalized appearance Product parameters: Total length: 350 mm (13 3/4 inches). Eye diameter (with sleeve): 12 mm. Maximum eye tensile strength: 2,000 kgf. Spring stiffness: 243lbs(110 kg). Maximum load: 440 lbs(200 kg) Motorcycle shock absorber universal fit for most vehicles. Package included One Pair Shock Absorber, 1 x Wrench, 4 x Bushing Universal fits for most 150cc~750cc street bikes, Karting(Go-kart), Scooters, and Moped Quad (ATV). Absorber shock promptly to improve on the clumpiest road and make you feel more comfortable.Best choice for replacement, style upgrading, or bike modification.Placement on Vehicle: Rear, left / right.Please kindly check the specific size above before placing the order to confirm it can fit your vehicle. Package includes: One Pair Shock Absorber 1 x Wrench 1 x Flat head hexagon wrench Easy and quick installation, But recommended qualified mechanic fits or checks.