for WP, KYB, SHOWA front forks (Closed cartridge systems) The patented N10Z compression valve automatically adjusts the damping during the ride without delay. "The thinking technology" The N10Z compression valve replaces the standard compression valve on one side of the front fork. Thanks to its unique operation, there is a noticeable increase in traction and safety compared to conventional systems. Comfortable over acceleration or braking bumps and bottoming out, safer on hard surfaces. Tuning via the shim setup is still possible. Replaces the OEM valve Easy installation through replacement Fine adjustment of compression and rebound via the clicker screws remains possible Adjustment of the high-speed damping on the adjusting screw is no longer necessary (self-adjusting), the rebound is not affected Adjustment via shim setup is still possible Racing items, not permitted in the StVZO area! Type/type Item Version of lower tubes for fork