1. Tighten the front hubs.
This modification decreases the force with which the vehicle enters the bend and thus applies less stress to the rear axle.

2. Broaden the rear carriage without however exceeding the maximum allowed value of 140 cm

3. Change the rear hubs for longer ones.
By doing this, the rear axle will become more rigid and work on a larger area of the tread.

4. Lift the frame at the rear axle.
In this way, like with the forecarriage, the lever arm pressing on the wheel increases and, consequently, there is also an increase in grip.

5. Move the seat back to increase the load on the rear axle.

6. Replace the axle with a harder one.
This operation will however reduce the drive of the vehicle.