MXMA 4357 Competition Fork 85


43mm Closed Cartridge technology

Friction optimized components

Factory Design

Light Weight Construction

Low Maintenance


Technical description

The 85 Competition Fork for the 85cc bikes is based on our race-proven and very well-known Closed Cartridge technology. The inner tube is 43mm with a DLC coating, combing highest performance with the WP Motorsports Design. The WP Motorsports 4357 Competition Fork is factory tuned and fully customizable suspension units. If required, various springs and settings are available through the WP Motorsports Distribution Network, allowing you to permanently optimize the set-up depending on the growth and weight of a person for example. The new WP Motorsports 4357 Competition Fork, suitable for all KTM 85 SX and Husqvarana TC85 Sportminicycles, has been especially developed to provide unprecedented damping performance for this high class, competitive category. Fully adjustable compression and rebound damping enables individual optimization for each biker and their style of riding. Well-spaced maintenance intervals guarantee consistent damping behavior throughout the season. The WP Motorsports 4357 Competition Fork is factory pre-set to meet any challenge on the race track. If required alternative springs and settings are available at any WP Supplier.

Technical Data

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


  • Spring Preload  
  • Compression Damping  
  • Rebound Damping  

Installation guide

The WP Motorsports 4357 Competition Fork replaces the original fork. It is designed to fit in the original triple clamps. The WP Motorsports 4357 Competition Fork can be fine-tuned by any WP Distributor to match the requirements for individual tracks. Additionally a wide range of simple adjustments allow the rider to fully adjust the fork on both fork legs. The WP Motorsports 4357 Competition Fork is tested and designed to offer the highest performance level in combination with the WP 85 TRAX Shock Absorber.


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

start configuration