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2019 Large SKU: BMT24389

Niner SIR 9 Mountain Bike - 2019, Large

Recommended Rider Height: 5'10" - 6'1" Size Guide
Regular price

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shipping icon $94.99 RideFast Shipping

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:
- New Michelin Wild AM rear tire for grip in all conditions.
- New shifter cable & housing, pro-tuned to optimize crisp shifting.

Master Mechanic's Notes:
- Moderate scratches on the drive side fork stanchion.
- Moderate paint chips & scratches on the chainstay arch.
- Small paint chips on the non-drive side chainstay.
- Small scratches on the down tube.

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 2019
Brand Niner
Model SIR 9
Size Large
Frame Material Steel
Drivetrain SRAM, 1x12 spd
Weight 28 lbs 8 oz
Fork FOX Factory Series 34 FLOAT Step Cast
Fork Travel 120mm
Rear Shock Travel N/A
Brakes SRAM Guide RSC, Disc Brakes - Hydraulic
Shifters SRAM X01 Eagle, Mechanical
Rear Derailleur SRAM X01 Eagle
Bottom Bracket Shell Press fit
Crankset SRAM X1 Carbon, 32t, 175mm
Cassette SRAM XG-1275 Eagle , 10-50t
Chain SRAM
Handlebar Race Face Next R Carbon, 800mm
Headset Niner
Stem Race Face Turbine Alloy, 35.0mm x 40mm, 3°
Seatpost SDG Tellis, 30.9mm
Seatpost Travel 150mm
Saddle WTB Speed
Front Axle Spacing 15x110mm (Boost)
Rear Axle Spacing 12x148mm Boost
Wheelset Stan's NoTubes ZTR Arch S1 Aluminum Tubeless Compatible, Stan's NoTubes Neo
Front Tire Maxxis Rekon+ EXO TR, 27.5" x 2.8"
Rear Tire Michelin Wild AM TL, 27.5" x 2.8"
Tire Type Tubeless
Tubeless Compatibility Bike ships tubeless

Geometry

Recommended Rider Height 5'10" - 6'1"
a. Effective Top Tube 627 mm
b. Seat Tube 485 mm
c. Seat Tube Angle 74°
d. Head Tube Angle 68°
e. Head Tube 125 mm
f. Stack 634 mm
g. Reach 445 mm
h. Standover Height 791 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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