Product description: Color:320mm Black Gold 320mm 12.59″ Material: Solid Steel+Aluminium Alloy Installation Type: Eye to Eye Fit on most 150cc~750cc Sport bikes and Dirt Bikes, Go-kart and Moped Quad. (Please be noted, if your vehicle is too heavy, especially for ATV, please kindly check the Maximum load of the shocks before placing order. ) Dimension: 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): 16mm Eye Thickness: 21mm Eye Maximum Tensile Strength: 2,000 Kgf Spring Thickness: 7mm Spring Width: 60mm Working Stroke: 60mm Spring Stiffness: 110 kg Maximum load: 200 kg (440 lbs) Air Reservoir: Adjustable Factory Air Pressure: 0.4 Mpa Maximum Air Pressure: 0.5 Mpa Will fit Following Models Hon-da Ya-maha 12.5″ 320mm Color:320mm Black Gold 320mm 12.59″ Material: Solid Steel+Aluminium Alloy Installation Type: Eye to Eye Fitment: Universal Fit. Work perfectly on most 150cc~750cc street bikes, Kar