An aluminum hardtail with the DNA of a trail bike. If a cross-country race bike met a rugged trail bike in the woods, their love child might look a lot like our AIR 9 aluminum hardtail. This bike blends the agility and efficiency of a pedal-friendly XC bike with the versatility, toughness, and capability of a rowdy trail rig. Build it your way with the AIR 9 frame-only option. The aluminum frame is ready for the best parts you can hang on it. Nearly any drivetrain you can imagine is within reach, and Boost hub spacing gives you freedom for all the wheel and tire options you could want. - 6061 Aluminum, can fit 29x2.4" or 27.5x3.0" tires - Seatpost size 30.9 (34.9 seat collar) - BioCentric 30 compatible - 73mm PF30 BB shell
Our flagship carbon fiber hardtail: AIR 9 RDO. Niner's purest expression of light, stiff Race Day Optimized carbon fiber rules the racecourse. This efficient yet compliant frame makes the most of carbon's unique properties to give you the best ride, no matter if you're gunning for a podium or cruising local singletrack.
Our do-it-all carbon fiber 29er trail bike hits the sweet spot with 140mm of consistent, controlled CVA suspension, adjustable geometry, and increased frame stiffness. Plus it's got standover for 170mm dropper posts, long reach, and a short head tube. Build it your way with the RIP 9 RDO frame-only option. Includes FOX Float DPX2 Factory EVOL rear shock. RDO carbon fiber keeps the platform light and stiff, Full Sleeve internal cable routing makes it easy to build, and Boost hub spacing gives you freedom for all the wheel and tire options you could want. - Includes FOX Float DPX2 Factory EVOL rear shock - Seatpost size 30.9 (34.9 seat collar) - Fox Live Valve and Shimano Di2 compatible - 73mm threaded BB; 1x single chainring only
This RKT 9 RDO is more versatile with a stout 120mm suspension fork and slightly slacker geometry. It's a pedal-friendly bike that's not afraid to get rowdy. With 90mm of efficient CVA rear suspension, you'll be quickest to the top of the climbs, yet pay no penalty going down. - Niner RDO carbon fiber, can fit 29x2.3" tires - Seatpost size 30.9 (34.9 seat collar) - Compatible with multiple drivetrain options - Integrated Niner SHIS IS42/28.6/IS52/40 headset - 73mm PF30 BB shell
SIR 9: rugged, reliable, comfortable Reynolds 853 steel. There's a new bike in town. It's built to last and not let you down. When you're spinning up the steeps, bombing down the backcountry, and grinding out the final miles as the sun sinks into the horizon, you need a bike you can trust. A comfortable, capable, hand-built bike made from proven, air-hardened, heat-treated steel. That's right, steel. Because Steel Is Real and it's fully optimized in the SIR 9.
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