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2021 Medium SKU: BMT24423

Niner Air 9 RDO Mountain Bike - 2021, Medium

Recommended Rider Height: 5'8" - 6'0" Size Guide
Regular price

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About Niner

Niner Bicycles is committed to dirt, so MTB and gravel are their only loves. Niner was early in the 29er game (get it?), and they're still following that groundbreaking spirit today.

Highlights
- FOX Factory Series 32 FLOAT Step-Cast suspension fork for a plush ride on the trails.
- Quarq AXS Power Meter.*
- absoluteBLACK oval chainring improving rider efficiency.

Master Mechanic's Notes:
- Light scratches on the top tube & down tube.
- Light scratches on the chainstays & seatstays.

* Power meters are typically aftermarket upgrades, and we cannot guarantee battery life, accuracy, or calibration.

About Niner

Niner Bicycles is committed to dirt, so MTB and gravel are their only loves. Niner was early in the 29er game (get it?), and they're still following that groundbreaking spirit today.
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TPC Guarantee

This bike passed a 141-point inspection and received a full pro-tune by our Master Mechanics in our Certified Pre-Owned process. CPO bikes are pristine and ready to ride!

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30-Day Hassle-Free Returns

Shop with confidence. Every bike is covered by our 30-day satisfaction guarantee. If this bike isn’t perfect for you, get in touch and we’ll help you find the right bike.

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RideFast Shipping

Bikes ship in our custom RideFast box, and assembly is incredibly simple. Most novice riders can assemble their bike in 5 minutes or less. The tools you need to assemble are also included.

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Specifications

Year 2021
Brand Niner
Model Air 9 RDO
Size Medium
Frame Material Carbon Fiber
Drivetrain SRAM, 1x12 spd
Weight 23 lbs 1 oz
Fork FOX Factory Series 32 FLOAT Step-Cast
Fork Travel 100mm
Brakes Shimano XT M8100, Disc Brakes - Hydraulic
Shifters SRAM X01 Eagle, Mechanical
Rear Derailleur SRAM X01 Eagle
Bottom Bracket Shell Press fit
Crankset SRAM XX1 W/Quarq AXS Power Meter, 32t, 170mm
Cassette SunRace, 11-50t
Chain SRAM
Handlebar Niner RDO Carbon, 780mm
Headset Integrated
Stem Deity Alloy, 31.8mm x 35mm, 0°
Seatpost KS Lev Ci Carbon Dropper, 27.2mm
Seatpost Travel 120mm
Saddle Fi'zi:k Argo
Front Axle Spacing 15x110mm (Boost)
Rear Axle Spacing 12x148mm Boost
Wheelset Niner Disc Aluminum Tubeless Compatible, Niner
Front Tire Schwalbe Racing Ray TL-Easy, 29" x 2.35"
Rear Tire Schwalbe Racing Ralph TL-Easy, 29" x 2.35"
Tire Type Tubeless
Tubeless Compatibility Bike ships tubeless

Geometry

Recommended Rider Height 5'8" - 6'0"
a. Effective Top Tube 610 mm
b. Seat Tube 614 mm
c. Seat Tube Angle 73°
d. Head Tube Angle 70°
e. Head Tube 110 mm
f. Stack 617 mm
g. Reach 424 mm
h. Standover Height 737 mm
i. Saddle Height Range N/A
VIEW SIZING GUIDE
QUALITY YOU CAN TRUST

“I love this company! My beautiful bike arrived promptly, was packed brilliantly, and tuned perfectly. It was exactly as described.”

— Kari K.

OVER 1,500 FIVE-STAR REVIEWS

“In the past month, I purchased a road bike and MTB from TPC. Very happy with the price and condition of both bikes! I was riding the bikes 10 minutes after I received them.”

— David H.

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