Fits Models: Fit for for most 320mm motorcycle shock absorber. Replacement for Honda/Yamaha/Suzuki/Kawasaki; Dirt bikes, Gokart, ATV, Motorcycles and Quad. Specification: A pair of round hole 320mm aluminum and solid steel shock absorber. Shock absorber bottom/ends type:round end. Reduce vibration: Pressure can be adjusted by springs or air, operation of the coil-over springs and air cylinder is helpful to reduce the shock and the intense vibration during riding, gives a smooth comfort and safety ridding. Features: Durable and high ability of suspension. Protect the interior components from damage due to severe vibration. Note: Please check the size details and make sure it will fit your motorcycle before purchase. Color:black 12.5″ Rear Shock Spring Absorbers Suspension Specification: Product name: Motorcycle Shock Absorber Total Length: 350mm (13 3/4″) Length of Eye to Eye Core: 320mm (12 5/8″) Eye Diameter(with bushing): 12mm Eye Diameter(with bushing removed): 16m