Easy to install,no instruction Come with bolts for easy installation Specifically designed for sport or road racing bikes Bracket can work with motorcycles steering dampers Precision CNC machined billet aluminum with hard anodized finish Description: Motorcycle Damper Assy Adopting Japanese Standard Oil Seal Technology,experience a comfortable and confidence-inspiring ride ?Cno matter the pavement conditions Large pistons and low viscosity-performance oil allow these shocks to react quickly to impacts and keep the tires tracthe road surface The Eyes Of Shock Has Tensile Strength more than 2000 Kgf. The Damper And Spring designes For Long Durablility (More Than 1 Million Stoke) Specification: Condition:100%Brand New Material:Aluminum AlloySteelPositionOnBike Rear Eye to Eye:235mm(9.25 Inch) Eye Diameter (for mounting bolt):10mm Spring Thickness:7mm Spring Width:58mm Maximum Load:250 kg/600 pounds Total Overall Length(uncompressed):270mm(10.63 Inch) Warranty:2 Years Limite