A48-R Air System for WP AER Fork

  • Sale
  • Regular price $355.00


Fits: All KTM & Husky with AER48

The innovative MXT A48R system is the first true off-road air fork that helps manage the hyper-progressive nature of all production air forks. The MXT A48R has been in development for an extensive period of time.

MXT saw a need to create a more linear force instead of the stock hyper-progressive characteristic, and achieved this by incorporating an additional compression region. The new high pressure region is positioned above the main pressure region, and is separated by a piston. As the main pressure region increases in pressure, it reaches a point at which the separation piston starts to compress. This effectively slows the rate at which the volume change accelerates. 

Currently, air fork systems work by using single-volume pressure regions. Air pressure changes depend upon the position of the stroke to change volume. This is similar to a hyper-progressive spring rate, where the air spring is the largest contributor to net force, and the most changed as a function of position.

MXT saw a need to create a more linear force instead of the stock hyper-progressive characteristic, and achieved this by incorporating an additional compression region. The new high pressure region is positioned above the main pressure region, and is separated by a piston. As the main pressure region increases in pressure, it reaches a point at which the separation piston starts to compress. This effectively slows the rate at which the volume change accelerates. MXT engineered this to occur in the middle of the stroke, which limits the progressive nature of the air fork. Finally, near the end of the stroke, the compensation effect of the high pressure region stops. At this point, the pressure dramatically rises, maintaining the original air spring effect which allows for excellent bottoming control.