11) What is the life cycle of quad bikes in Australia? For example, on average how long do consumers use quad bikes before the vehicle is retired? How long might it take before the current stock of 380,000 quad bikes is replaced by new stock that satisfies requirements of a safety standard, if imposed?
Long. My experience would suggest around 5000hours from new. This is around 5 years of frequent use. Then some will be around much longer as 'runabouts'. Similar to tractors with ROPS, retrofit kits should be made available.