Designed to flex rearwards in an inadvertent contact with overhead obstacles. The Quadbar Flexi is a small unobtrusive, structure mounted on the quadbike behind the rider designed to counter some of the risks associated with rollovers. The Quadbar acts as a Crush Protection Device (CPD) as opposed to the more commonly known roll over protective structures (ROPS). A typical ROPS would require a full cage and driver restraint, which are not feasible on a rider active vehicle such as a quadbike. The innovative new design allows the top half to flex when needed but then ‘locks’ to offer the protection to the rider in the same way as a traditional rollbar. The height is adjustable when installing the Quadbar Flexi by cutting the lower structure tube to the desired length.