RC 125-390 Cup Fork


Open Cartridge system

Fully accessible adjustment units

Extremely fine sensitivity due to friction-optimized coating on inner and outer tubes

Light weight construction

Fully adjustable with standard tools

Standard in the KTM RC 390 Cups around the world


Technical description

The WP Motorsports RC 125-390 Cup Fork has been developed based on our know-how from the race track and provides excellent damping results combined with outstanding response. The driver can handle the motorcycle more skillfully and has outstanding control. The WP Motorsports RC 390 Cup Fork was first developed for the German ADAC cup. A closed cartridge system combined with high quality coated tubes ensures highest performance and responsiveness. It is completely adjustable in compression, rebound and spring preload, which enables an individual setup.

Technical data

  • Piston 23 mm
  • Piston rod 12 mm
  • Inner tube 43 mm


  • Spring Preload  
  • Compression Damping  
  • Rebound Damping  

Installation guide

The WP Motorsports RC390 Cup Fork replaces the original fork. It is designed to fit in the original triple clamp and to be used with the original axle. The WP Motorsports RC390 Cup Fork comes with a standard spring. Alternative springs are available for individual setup. The forks can be fine-tuned by any WP Supplier to match the requirements for individual tracks and rider’s weight. Additionally a wide range of simple adjustments allows the rider to fully adjust the fork on both fork legs. The WP Motorsports RC390 Cup Fork is tested and designed to offer the highest performance in combination with the WP Motorsports RC390 Cup Shock Absorbers.


Individual suspension elements for each type of rider - configure your own suspension setup.

start configuration