pair of rear motorcycle shock absorbers, made of quality aluminum and stainless steel; Color: As picture shows; Placement on vehicle: rear, left, right Hole size: 12mm; Length between holes to clevis: 320mm Universal for most 150cc~750cc street bikes, Karting(Go kart), Scooters and Moped Quad (ATV) with shocks of 320mm Length of Eye to Clevis Total Length: 350mm (13.78″)Length of Eye to Clevis Core: 320mm (12.6″) Air Reservoir: Adjustable Color: Many colors for your choiceMaterial: Solid Steel + Aluminum Alloy Installation Type: Clevis/Straight Fork Package includes: One Pair Shock Absorber 2 x Wrench2 x Bushing Qualified mechanic fits or checks recommendedafter the installation of this product Installation Manual is included Clevis Hole Diameter: 8mm Clevis Inner Width: 20mm Clevis Maximum Tensile Strength: 2,000 Kgf Spring Thickness: 7mm Spring Width: 60mm Working Stroke: 60mm Spring Stiffness: 110 kg Maximum load: 200 kg (approx.440 lbs) Factory Air Pressure: 0.4 Mpa