Niner 2021 Jet 9 RDO 2-Star Full Suspension Mountain Bike (Emerald Green) (XL) (SRAM SX Eagle)

Niner 2021 Jet 9 RDO 2-Star Full Suspension Mountain Bike (Emerald Green) (XL)
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Price: $4,799.00 (Save 20%)
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  • XL
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The 2021 Niner Jet 9 RDO 2-Star Full Suspension Mountain Bike reimagines Niner's most popular and versatile trail bike. 120mm of suspension travel is just enough for any trail - helping you to float up technical climbs, crush downhills, and glide over everything else. The Jet's fit is just right, with contemporary geometry, a roomy cockpit, short chainstays, and a flip-chip seatstay setup that allows riders to lower the bottom bracket by 8mm to slack out the bike.

Niner's CVA (Constantly Varying Arc) suspension is at the heart of the Jet. CVA ensures stability when pedaling while remaining sensitive and supportive on the downhills. New Trunnion mount shocks add width and stiffness and premium Enduro MAX Black Oxide pivot bearings offer the best performance and longevity available. The frame is designed with a wide, flat toptube and downtube to better absorb impacts. Full sleeve internal cable guides make routing easy and shifting performance is optimized with a smooth, straight chainline. All in all, the 2021 Niner Jet is a singletrack bomber that will surely garner the respect and envy of your squadron.


  • What it is: a weight-conscientious full suspension carbon frame capable of trail riding versatility and cross-country efficiency
  • Includes: 29" Niner alloy wheels (30mm inner width), Fox 34 Float Rhythm GRIP EVOL Fork (130mm Travel), SRAM Level Brakes
  • SRAM SX Eagle Components (2-Star): value and performance meet in just the right place
  • CVA Suspension: supple yet stable - providing the confidence to drop into gnarly lines, knowing you'll get consistency and control from top to bottom
  • RDO Carbon Fiber: Niner's premium Race Day Optimized carbon fiber means more strength, higher stiffness, and less weight
  • Full Sleeve Cable Guides: no more fishin". End-to-end cable guides through the frame for easy installation and maintenance

Due to availability issues during manufacturing, build specifications are subject to change. Please contact us if you wish to verify build specs before purchase.

Color: Emerald Green
Frame: Niner RDO Carbon Fiber, CVA Suspension, Aluminum Linkage, Enduro Max Pivot Bearings, Full Sleeve Internal Cable Routing (120mm Travel)
Fork: Fox 34 Float Rhythm Grip EVOL, Sweep Adjust (130mm Travel) (110 x 15mm Axle) (44mm Offset)
Shock: Fox Float X Performance EVOL 2 Position w/ Adjust
Tubes/Sealant: Stans No Tubes Sealant (2 x 2oz Bottles)
Front Wheel: Niner Alloy (30mm Inner Width) (110 x 15mm Axle)
Rear Wheel: Niner Alloy (30mm Inner Width) (148 x 12mm Axle)    
Front Tire: Schwalbe Nobby Nic Evo Super Trail TLE Addix Speedgrip (29" x 2.6")
Rear Tire: Schwalbe Nobby Nic Evo Super Trail TLE Addix Speedgrip (29" x 2.35")
Brakes: SRAM Level
Brake Levers: SRAM Level
Brake Rotors: G2CS Rotors (180/180mm)
Chain: SRAM SX Eagle (12 Speed)
Front Shifter: N/A
Rear Shifter: SRAM SX Eagle (12 Speed)
Front Derailleur: N/A
Rear Derailleur: SRAM SX Eagle (12 Speed)
Cassette: SRAM PG 1210 (11-50T)
Crankset: SRAM X1 1K Eagle DUB (32T)
Bottom Bracket: SRAM DUB BSA Threaded
Saddle: Niner Custom Tr With Chromoly Rails, Printed Niner Graphic
Seatpost: KS Lev Si (XS/S-100mm, M/L/XL-150mm)
Handlebar: Race Face Aeffect R (780mm Wide) (20mm Rise) (35mm Clamp)
Stem: Race Face Aeffect R 40mm (35mm Clamp)
Headset: Niner Internal ZS (ZS44/28.6 | ZS56/40)
Grips: Niner Grrrips (Lock-On) (Nylon) (Flanged) Soft Compound)
Approximate Weight: 29.6 lbs

*Note: These bikes are fully built by our expert bike builders, then partially disassembled as needed for shipping. Bikes will arrive to you with some basic assembly still required.

Technical Data:
Frame Fittings And Mounts: 1 Bottle Cage In Front Triangle
Rear Suspension Travel: 120mm
Maximum Front Suspension: 140mm
Fork Offset: 44mm
Shock Size: 165 x 45mm Trunnion
Shock Mounting Hardware: Upper - M10 x 54 Trunnion, Lower M8 x 25mm
Suggested Shock Sag: 30% (13.5mm)
Seatpost Size: 30.9mm
Seat Collar Size: 34.9mm
Cable Routing: Internal
Front Derailleur: N/A
Headset Size: SHIS: ZS44/28.6 | ZS56/40
Pivot Bearing Specs: (8X) 26 x 17 x 5mm Enduro Bo Max, (2x) 26 x 17 x 10mm Enduro Double Row, (2x) 22 x 10 x 6mm Enduro Bo Max
Chainring Compatibility: N/A
Maximum Chainring Size: 34T
Q-Factor: N/A
ISCG Compatibility: ISCG 05 FWD Mounts
Bottom Bracket Type: BSA Threaded
Biocentric Compatible: N/A
Brake Mount Type: Post Mount
Maximum Rear Rotor Size: 180mm
Rear Wheel Spacing: 12 x 148mm
Rear Wheel Through Axle Spec: 12 x 182mm, M12 x P1.0, L15mm
Front Wheel Axle Spacing: N/A
Front Wheel Through Axle Spec: N/A
Max Tire Size: 29" x 2.6"

This product was added to our catalog on October 11, 2021

Sizing Recommendations for Riders Who Fall Between Sizes:

  • Sizing down will provide a more maneuverable ride while sizing up will provide more stability
Rider Height (Feet)Rider Height (Meters)
S5'3" - 5'9"1.6 - 1.75m
M5'8" - 6'1.73 - 1.83m
L5'11" - 6'3"1.8 - 1.91m
XL6'3" - 6'7"1.91 - 2.01m

Note: All sizing recommendations are provided by the manufacturer and may differ for each rider.


(A) Top Tube Length
(High Mode/Low Mode)
(B) Seat Tube Length376mm406mm446mm496mm
(C) Chainstay Length Actual
(High Mode/Low Mode)
(D) Front Center
(High Mode/Low Mode)
(E) Wheelbase
(High Mode/Low Mode)
(F) Bottom Bracket Drop
(High Mode/Low Mode)
(G) Headtube Length95mm110mm125mm140mm
(H) Headtube Angle
(High Mode/Low Mode)
(I) Seat Tube Angle
(High Mode/Low Mode)
(J) Stand Over Height
(High Mode/Low Mode)
(K) Reach
(High Mode/Low Mode)
(L) Stack
(High Mode/Low Mode)
(A) Top Tube Length
(High Mode/Low Mode)
(B) Seat Tube Length14.8"16"17.6"19.5"
(C) Chainstay Length Actual
(High Mode/Low Mode)
(D) Front Center
(High Mode/Low Mode)
(E) Wheelbase
(High Mode/Low Mode)
(F) Bottom Bracket Drop
(High Mode/Low Mode)
(G) Headtube Length3.7"4.3"4.9"5.5"
(H) Headtube Angle
(High Mode/Low Mode)
(I) Seat Tube Angle
(High Mode/Low Mode)
(J) Stand Over Height
(High Mode/Low Mode)
(K) Reach
(High Mode/Low Mode)
(L) Stack
(High Mode/Low Mode)