Niner AIR 9 SX Bike Cross-country quickness with a trail bike attitude. The Niner AIR 9 is what happens when a lightweight XC race bike and a rowdy trail rig get together. Built on a hydroformed and welded 6061-T6 aluminum frame, the AIR 9 is fast enough to pin it at the races and tough enough for all-day trail riding. Niner's trail country geometry splits the difference between modern trail and traditional XC - a slack 68deg head tube angle and long wheelbase for confident descending, a steep 74deg seat angle and short 430mm chainstays for efficient climbing, and a roomy cockpit that pairs well with short stems. Fitted for a 120mm fork and clearance for 29x2. 4" or 27. 5x3. 0" tires, the AIR 9 handles whatever you point it at. The SX build keeps things accessible with a SRAM SX Eagle 12-speed drivetrain, SRAM Level hydraulic disc brakes, and a KS LEV SI dropper post. Features Hydroformed and welded 6061-T6 aluminum frame with Niner's trail country geometry for a balanced blend of XC efficiency and trail capability68deg head tube angle with 430mm chainstays for stability on the descents and snap on the climbs Raidon 34X Boost fork, 120mm travel for a capable, controlled front end SRAM SX Eagle 12-speed drivetrain with an 11-50T cassette for a wide gear range on any terrain SRAM Level hydraulic disc brakes with 180mm front and 160mm rear rotors for reliable stopping power KS LEV SI dropper post - XS/S: 100mm, M/L/XL: 150mm - for confident descending on technical terrain Internal dropper post routing for a clean build Biocentric 30 BB compatible for easy conversion to singlespeed if the mood strikes Clearance for 29x2. 4" or 27. 5x3. 0" tires for maximum versatility in wheel and tire choices SPECIFICATIONSFrame Niner Hydroformed and Welded 6061-T6 Aluminum, Internal Dropper Routing, Boost 148x12mm, PF30 BB Shell, Post Mount Disc Fork Raidon 34X Boost 29", 120mm, 15x110mm, 51mm Offset Headset Niner Integrated, IS42/28. 6 | IS52/40Rear Shifter SRAM SX Eagle, 12-Speed Front Derailleur N/ARear Derailleur SRAM SX Eagle, 12-Speed Crankset SRAM X1 1K Eagle DUB, 32T - XS/S/M/L: 170mm, XL: 175mm Bottom Bracket SRAM DUB PF30Chain SRAM SX Eagle, 12-Speed Cassette SRAM PG 1210, 11-50TBrakes SRAM Level Hydraulic Disc - 180mm G2CS Rotor (Front), 160mm G2CS Rotor (Rear)Wheelset Niner Alloy, Tubeless-Compatible Tires Schwalbe Nobby Nic Evo Super Trail TLE Addix Speedgrip 2. 6" (Front) / Schwalbe Nobby Nic Evo Super Trail TLE Addix Speedgrip 2. 35" (Rear)Handlebar Niner Flat Top Alloy, 780mm Stem Niner Alloy, 31. 8mm - XS/S/M: 50mm, L/XL: 60mm Grips Niner Grrrips Lock-On, Nylon Soft Compound Seatpost KS LEV SI - XS/S: 100mm, M/L/XL: 150mm, 30. 9mm Saddle Niner Custom, Cr Mo Rails Intended Use XC, Trail Note: Components are subject to change without notice. METRICINCHNiner AIR 9Size X-Small Small Medium Large X-Large A: Seat Tube Length356394419483533B: Top Tube Length570585603627652C: Stack610610620634652D: Reach395410425445465F: BB Drop5252525252G: Head Tube Length100100110125145H: Head Tube Angle68. 0 deg68. 0 deg68. 0 deg68. 0 deg68. 0 degI: Seat Tube Angle74. 0 deg74. 0 deg74. 0 deg74. 0 deg74. 0 degJ: Standover Height698729748800841K: Chainstay Length430430430430430L: Wheelbase11021117113611621189Stem Length50 mm50 mm50 mm60 mm60 mm Handlebar Width780 mm780 mm780 mm780 mm780 mm Suggested Rider Height Frame Size X-Small Small Medium Large X-Large Rider Height5'0" - 5'5" 153 - 165 cm5'3" - 5'9" 160 - 175 cm5'8" - 6'0" 173 - 183 cm5'11" - 6'3" 180 - 191 cm6'3" - 6'7" 191 - 201 cm Niner AIR 9Size X-Small Small Medium Large X-Large A: Seat Tube Length14. 015. 516. 519. 021. 0B: Top Tube Length22. 423. 023. 724. 725. 7C: Stack24. 024. 024. 424. 925. 7D: Reach15. 516. 116. 717. 518. 3F: BB Drop2. 02. 02. 02. 02. 0G: Head Tube Length3. 93. 94. 34. 95. 7H: Head Tube Angle68. 0 deg68. 0 deg68. 0 deg68. 0 deg68. 0 degI: Seat Tube Angle74. 0 deg74. 0 deg74. 0 deg74. 0 deg74. 0 degJ: Standover Height27. 528. 729. 531. 533. 1K: Chainstay Length16. 916. 916. 916. 916. 9L: Wheelbase43. 444. 044. 745. 846. 8Stem Length50 mm50 mm50 mm60 mm60 mm Handlebar Width780 mm780 mm780 mm780 mm780 mm Suggested Rider Height Frame Size X-Small Small Medium Large X-Large Rider Height5'0" - 5'5" 153 - 165 cm5'3" - 5'9" 160 - 175 cm5'8" - 6'0" 173 - 183 cm5'11" - 6'3" 180 - 191 cm6'3" - 6'7" 191 - 201 cm | Niner | Air 9 Sx Bike | Olive Grey | L | Nylon