This hub is not a simple accessory. Unlike aluminum versions, the magnesium offers two major benefits in competition:

1. Lightness: Reduction of non-suspended masses, which facilitates the rotation of the axle and improves the vivacity of the kart.

2. Thermal management: Magnesium is better dissipating the heat generated by the tires. This helps stabilize tire pressure during long races (eg KZ or endurance events), avoiding excessive overheating of the gum.

   The length of 78 mm Offers an important lever arm, ideal for loading the back train and gaining motor skills.