Niner SIR 9 27.5" Mountain Bike - 2018, X-Large drive side Niner SIR 9 27.5" Mountain Bike - 2018, X-Large non-drive side Niner SIR 9 27.5" Mountain Bike - 2018, X-Large sticker Niner SIR 9 27.5" Mountain Bike - 2018, X-Large drivetrain Niner SIR 9 27.5" Mountain Bike - 2018, X-Large front wheel Niner SIR 9 27.5" Mountain Bike - 2018, X-Large cockpit
2019 X-Large SKU: BMT18519

Niner SIR 9 27.5" Mountain Bike - 2018, X-Large

Recommended Rider Height: N/A Size Guide
Regular price

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shipping icon $94.99 RideFast Shipping

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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 X-Large
Frame Material Steel
Drivetrain SRAM, 1x11 spd
Weight 29 lbs 11 oz
Fork RockShox Pike RCT3 Solo Air
Fork Travel 120mm
Rear Shock N/A
Rear Shock Travel N/A
Brakes Shimano XT M8000, Disc Brakes - Hydraulic
Shifters SRAM GX, Mechanical
Front Derailleur N/A
Rear Derailleur SRAM GX
Crankset Race Face Turbine Alloy w/ Race Face Chainring, 26t, 175 mm
Cassette SRAM XG-1150, 11spd, 10-42t
Chain SRAM
Handlebar Race Face SixC Carbon, 750 mm
Headset Cane Creek Forty
Stem Race Face Ride Alloy, 35.0 mm x 90mm, 6°
Seatpost Specialized Command Post IRcc Dropper, 30.9mm
Seatpost Travel 125mm
Saddle Specialized Henge w/ Hollow Cr-Mo Rails
Front Axle Spacing 15x110mm Boost (Thru-Axle)
Rear Axle Spacing 12x148mm Boost (Thru-Axle)
Wheelset Race Face ARC 40 Alloy, Hope Pro4
Front Tire Schwalbe Nobby Nic EVO TLE, 27.5" x 3.0"
Rear Tire Schwalbe Nobby Nic EVO TLE, 27.5" x 3.0"
Tire Type Tubeless
Tubeless Compatibility Bike ships tubeless

Geometry

Recommended Rider Height N/A
a. Effective Top Tube 652 mm
b. Seat Tube 533 mm
c. Seat Tube Angle 74.0°
d. Head Tube Angle 68.0°
e. Head Tube 145 mm
f. Stack 652 mm
g. Reach 465 mm
h. Standover Height 830 mm
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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