Motorcycle shock absorber universal fit for most vehicles Shock strength adjustable. Best choice for replacement, style upgrading or bike modification. Built-in hydraulic airbag, 24 segments adjustable soft and hard damping. Damping spring can adjust soft and hard, high comfort, super soft. Suitable for motorcycles with 2 piece rear shock absorbers. Product Description The coil-over springs are helpful to reduce the shock. The suspension provides smoother driving and better overall damping management, improving driving comfort, motorcycle handling and driving safety Name: Motorcycle rear shock absorber Material: T6063 aluminum alloy Process: CNC precision numerical control Color: black size: Eye-to-eye core length: 320/340/360mm Eye diameter (with sleeve): 10 mm Eye thickness: 21mm Maximum tensile strength of eyes: 2,000 Kgf Spring width: 64mm Spring thickness: 7mm Working stroke: 55mm Spring stiffness: 110 kg Maximum load: 200 kg (440 lb) Air storage: adjustable Factory air pressure