Destined for crushing miles of rolling singletrack and toeing the line on race day, the Niner Air 9 RDO delivers blistering acceleration and nimble handling for ripping across forest networks and blowing the doors off the competition. Winning doesn't have to cost a fortune though thanks to the SX Eagle drivetrain and 100mm FOX fork that gives you equal performance as higher-end builds while leaving enough cash in your pocket for race entry fees or road trips to epic riding destinations. As with Niner's other RDO offerings, the Air 9 RDO is constructed using Niner's Carbon Compaction System (CCS), which gives Niner complete control over tube wall thickness across the frame. This makes for tube walls that are virtually perfect, reducing the amount of material required and eliminating excess resin build-up. The result is a claimed weight loss of 10% over previous generations of the Air 9, an impressive feat for a bike that was already light and peppy to begin with.