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2017 Medium SKU: BMT20102

Niner Air 9 RDO Mountain Bike - 2017, Medium

Regular price


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TPC Guarantee

Every bike receives our white glove, Certified Pre-Owned treatment, including a full pro-tune by our Master Mechanics in Louisville, CO. All CPO bikes are pristine and rolling beautifully before we pack and ship to your door.

- New chain to optimize crisp shifting.
- FOX Factory Series 32 Step-Cast suspension fork.
- PNW Rainier dropper seat post for technical riding.

Master Mechanic's Notes
- Moderate scratches on the drive-side chainstay.
- Moderate scratches on the down tube.
- Cosmetic blemish on the drive-side chainstay.
- Missing rubber frame plugs on the down tube.

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141-Point Inspection

This bike passed our 141-point inspection to qualify to be a Certified Pre-Owned bike. It's free of structural damage and is in excellent cosmetic shape.

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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

Assemble your bike in 15 minutes or less! Our bikes ship in our RideFast box for speed and safety. All tools you need to assemble are included.

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Year 2017
Brand Niner
Model Air 9 RDO
Size Medium
Frame Material Carbon Fiber
Drivetrain SRAM, 1x12 spd
Weight 22 lbs 13 oz
Fork FOX Factory Series 32 FLOAT Step-Cast
Fork Travel 100mm
Brakes SRAM Guide R, Disc Brakes - Hydraulic
Shifters SRAM GX Eagle, Mechanical
Rear Derailleur SRAM GX Eagle
Bottom Bracket Shell Press fit
Crankset SRAM GX, 34t, 170mm
Cassette SRAM XG-1275, 10-50t
Chain SRAM
Handlebar Niner RDO Carbon, 750mm
Headset Integrated
Stem Race Face Alloy, 31.8mm x 60mm, 6°
Seatpost PNW Rainier Dropper, 27.2mm
Seatpost Travel 100mm
Saddle Niner Custom
Front Axle Spacing 15x110mm (Boost)
Rear Axle Spacing 12x148mm Boost
Wheelset DT Swiss X 1900 Disc Aluminum Tubeless Compatible, DT Swiss
Front Tire Maxxis Ikon 3C MaxxSpeed EXO TR, 29" x 2.2"
Rear Tire Maxxis Ikon 3C MaxxSpeed EXO TR, 29" x 2.0"
Tire Type Tubeless


Recommended Rider Height 5'5" - 5'9"
a. Effective Top Tube 630 mm
b. Seat Tube 483 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 744 mm
i. Saddle Height Range 590 - 670 mm

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

— Kari K.


“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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