the only thing i have broken so far is when i bent the steering plate
i have at least 10 races on it now including 4 trophy races 3 of which i ran 40 minute mains
i have many many hours on it now and its holding up great
i havent done any mainteneance except i changed 2 of the hinge pin bushings
and believe me when i say i havent been easy on it
get one and you will be impressed without a doubt