-25 mm Lowering Rear Shock Spring Spring Color:Black a pressure-relief valve to prevent

a pressure-relief valve to prevent hydraulic blocking

increasing pressure and automatically adjusting both spring rate and damping

Superior heat dissipation and zero damping fade

Internal Free Piston Technology: By completely separating the nitrogen gas and hydraulic oil inside the shock body

It’s subtle in everyday use and only minimally restricts steering range

-25 mm Lowering Rear Shock Spring Spring Color:Black a pressure-relief valve to preventProgressive lowering rear spring. With the use of the progressive rear spring it is possible to lower a bike and also improve the ride quality at the same time. The rear spring is mounted on the original shock and is used on motorcycles which have no link system