YSS have developed a range of fork upgrade kits to dramatically improve the front ends of a host of popular bikes. Basically the kits include fork caps, fork springs, pd valves and fork oil.

The fork caps allow the fork spring preload to be adjusted to suit rider weight

The fork springs are high performance progressive springs to replace the standard units, with any necessary spacers etc

PD fork valves are small valves which sit between spring and damper rod and offer much improved damping control via dynamic control of fluid flow rates using shim stack technology.

Please note there are variations in upgrade kit contents depending on the application. Please check the list of applications to confirm kit contents for your bike.

Kit prices vary depending on contents from £169 delivered.