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2020 Niner RKT 9 RDO 4 Star build. This thing is a rocket ship and great for technical XC racing. It's a great trail bike too. I rode this bike at Leadville the last two years and its a great bike for that too. The XT derailleur clutch went out on me during the 2022 Leadville 100, so it has a brand-new XT derailleur. Bike is in great condition. There are some scratches from riding off road on the carbon but nothing that compromises the integrity of the carbon. Product Niner RKT 9 RDO 4-Star Bike Model Year 2020 Sizes and Geometry SM (120mm fork) Wheel Size 29" Frame Material Carbon Fiber Frame Material Details RDO (Race Day Optimized) carbon, aluminum rocker links, molded chainstay protection Rear Travel 90mm Rear Shock FOX FLOAT DPS Factory, EVOL, Kashima coating, 165x38mm Standard build has 3-position with adjust; Standard: FOX 34 SC FLOAT Factory, EVOL, FIT4 damper, 3-position with adjust, Kashima coating, 110X15mm BOOST axle, 44mm offset Fork Travel 120mm (standard) Head Tube Diameter Tapered, 1.125" top, 1.5" bottom Headset Niner Internal ZS, ZS42/28.6 upper, ZS52/40 lower Handlebar Niner Flat Top RDO, 780mm (Cut to 720mm) Stem Niner RDO Grips ESI Chunky Brakes Shimano XT M8100, 2-piston, metal pads with cooling fins, Shimano MT800 Centerlock rotors (180mm front, 160mm rear) Brake Levers Shimano XT M8100 Drivetrain 1x Shifters Shimano XT M8100, 12-speed, I-SPEC EV clamp Rear Derailleur Shimano XT M8100, 12-speed, SGS cage Cranks Race Face Next R Carbon Chainrings Race Face Next R, 32 tooth Bottom Bracket Race Face, PressFit 30, 73mm Pedals N/A Chain Shimano XT M8100, with QUICK-LINK Cassette Shimano XT M8100, 12-speed, 10-51 tooth Rims DT Swiss X1900 Spline 25 wheelset Hubs DT Swiss 370, Centerlock rotor mounts, 110x15mm Boost front, 148x12mm Boost rear Spokes DT Swiss X1900 Spline 25 wheelset Tires Front: Maxxis Rekon, 3C/EXO/TR, 29" x 2.4" WT Rear: Maxxis Rekon Race, 2C/EXO/TR, 29" x 2.25" Saddle Niner Custom TR, CrN-Ti rails, Seatpost Niner RDO, 370mm length Seatpost Diameter 30.9mm Seatpost Clamp Single bolt, 34.9mm Rear Dropout / Hub Dimensions 148x12mm Boost Max. Tire Size 29" x 2.3" Colors Carbon/Green 24 lb 1.6 oz (10,932 g) Miscellaneous CVA (Constantly Varying Arc) suspension system Internal cable routing via full sleeve cable guides Di2 and internal dropper post compatible