-25 mm Lowering Rear Shock Spring Spring Color:Black rebound and compression damping have

rebound and compression damping have been optimized for smoother performance and better control

The Wilbers version employs a softer spring paired with optimized rebound and compression damping

Tailored to suit optional motion ratio shock linkage systems

it is often a poor compromise and access to the adjustment knobs is not guaranteed

-25 mm Lowering Rear Shock Spring Spring Color:Black rebound and compression damping haveProgressive 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