Universal 320mm Motorcycle Rear Shock Absorbers Suspension Springs Damper. Color: Chrom with Black springs. As the picture show. Material:Solid Steel+Aluminium Alloy. Hole Internal Diameter Of Top And Bottom Bushings 3 sizes. Center To Center Length:320mm 12 1/2". Spring Dia: 8mm. Spring Rate: 1lbs/0.09inch. Max Load:300kgs. One Pair Shock Absorber. - Unmatched reliability and performance from high-tech materials. - Manufactured to exacting standards so the engine can be rebuilt with total confidence. - . - Direct oem replacement. - Please see image before ordering to avoid mistakes. - Best value for money. - ORO products are a high quality replacement part and carries our guarantee of your satisfaction. - Easy to install but if unsure please use a professional Cross Reference Numbers Only: 29-502.PR