Symptom: During and after race track use, loud noises can sometimes come from the wheel assembly on the rear axle - particularly on bends.
Cause: Particles of dirt on the contact surfaces can cause micro-movements in the wheel assembly on the rear axle (rim/brake disc/wheel hub) and this can result in loud noises.
Remedial
Action:
In the event of a customer complaint, clean the wheel assembly on the rear axle as described under "Work Procedure".