Earlier this month June 2017 Polaris Quad bikes were recalled –
Up to 13,000 Polaris youth quad bikes could be affected by asbestos which has prompted a nationwide recall.
Testing carried out in the US found asbestos in brake pads, brake shoes, washers and gaskets in 12 models of Polaris youth quad bikes manufactured between 2001 and 2017
Take a look at the news article on the ABC web site June 2017 below pic
It is most important that anyone with one of these quad bikes check out the list on the ACCC Product Safety Australia web site listed here below