Niner's 4-Star Shimano GRX 800 2x complete build delivers Ultegra-comparable GRX performance at a great price level. With DT Swiss G 1800 Spline 25 wheels, Schwalbe tires, and an Easton 2x chainring carbon crankset, this is one of the best gravel-grinding packages available. In 2020 Niner updated the RLT 9 RDO Frameset for wider tires and an overall geometry that offers improved stability and agility with either 650b or 700c wheels/tires. The generous tire clearance is now capable of supporting 700x50c or 650bx2.0 options. In re-conceiving the RLT 9 line-up, Niner has essentially made the carbon RDO, Steel, and Alloy versions with the same features. While the RDO is still lightweight, responsive to pedal load, and gravel race worthy, it also has 26 mounts to accommodate bags, cages, fenders, racks, and lights. This assures you can have the performance and compliance with full gravel genre capability. Niner has also changed the fork to a 12/100mm thru-axle, as more gravel-oriented wheels are being made with that standard. Flat Mount disc brake caliper interfaces keep the set-up clean.