Niner SIR 9 5-Star Mountain Bike - 2019, Medium drive side Niner SIR 9 5-Star Mountain Bike - 2019, Medium non-drive side Niner SIR 9 5-Star Mountain Bike - 2019, Medium sticker Niner SIR 9 5-Star Mountain Bike - 2019, Medium drivetrain Niner SIR 9 5-Star Mountain Bike - 2019, Medium front wheel Niner SIR 9 5-Star Mountain Bike - 2019, Medium cockpit Niner SIR 9 5-Star Mountain Bike - 2019, Medium crank Niner SIR 9 5-Star Mountain Bike - 2019, Medium detail 1 Niner SIR 9 5-Star Mountain Bike - 2019, Medium detail 2 Niner SIR 9 5-Star Mountain Bike - 2019, Medium detail 3
2019 Medium SKU: BMT14883

Niner SIR 9 5-Star Mountain Bike - 2019, Medium

Regular price

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shipping icon $94.99 RideFast Shipping

This bicycle is backed by the TPC Quality Assurance program.

This bicycle has been professionally serviced by our mechanics.

Light wear and tear from cable rub, heel rub, chain, etc.

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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

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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Specifications

Year 2019
Brand Niner
Model SIR 9 5-Star
Size Medium
Frame Material Steel
Drivetrain SRAM, 1x12 spd
Weight 28 lbs
Fork Fox 34 Float SC Factory Series FIT4
Fork Travel 120mm
Rear Shock N/A
Rear Shock Travel N/A
Brakes SRAM Guide RSC, Disc Brakes - Hydraulic
Shifters SRAM X01 Eagle, Mechanical
Front Derailleur N/A
Rear Derailleur SRAM X01 Eagle
Crankset SRAM X1 Carbon Eagle DUB, 32t, 175 mm
Cassette SRAM X01 Eagle XG-1295, 12spd, 10-50t
Chain SRAM
Handlebar Race Face Next R Carbon, 800 mm
Headset Niner internal
Stem Race Face Turbine R alloy, 35.0 mm x 40mm, 0°
Seatpost SDG Tellis, 30.9mm
Seatpost Travel 150mm
Saddle Niner Custom TR w/ CrN / Ti Alloy rails
Front Axle Spacing 15x110mm Boost (Thru-Axle)
Rear Axle Spacing 12x148mm Boost (Thru-Axle)
Wheelset Stan's NoTubes ZTR Flow S1 alloy, Stan's Neo
Front Tire Maxxis Minion DHF 3C Maxx Terra EXO TR, 29" x 2.5"
Rear Tire Maxxis Rekon 3C Maxx Terra EXO TR, 29" x 2.4"
Tire Type Tubeless
Tubeless Compatibility Bike Ships Tubeless

Geometry

Recommended Rider Height 5'8" - 6'0"
a. Effective Top Tube 603 mm
b. Seat Tube 421 mm
c. Seat Tube Angle 74.0°
d. Head Tube Angle 68.0°
e. Head Tube 110 mm
f. Stack 620 mm
g. Reach 425 mm
h. Standover Height 739 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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