The SMART AXLE TUNERS are suitable for 3mm, 2.5mm, and 2mm wall thickness smooth bore 40mm axles. They will help you tune your kart chassis to suit all track conditions. By changing the stiffness and resilience of the axle they will vary the amount of cornering grip the kart has on the track.

The SMART AXLE TUNERS are fully adjustable. They can be used in different positions in each side of the axle or use one on one side only to tune your kart's handling differently depending on the number of right and left turns. The possibilities are almost endless.

Instructions