Brakes are repeatedly applied and released to test the brake track durability and heat resistance.
A rim is placed in the test rig and with a load of 100kg. It is then rotated constantly at 12.5kph, while the brakes are engaged and disengaged at a set pressure every 3 seconds. Rims should endure 3000 cycles of braking with no sign of failure to meet industry standards.
This tests how well the rim can withstand the heat generated from braking on the carbon track.