Niner SIR 9 2-Star Mountain Bike - 2019, Medium drive side Niner SIR 9 2-Star Mountain Bike - 2019, Medium non-drive side Niner SIR 9 2-Star Mountain Bike - 2019, Medium sticker Niner SIR 9 2-Star Mountain Bike - 2019, Medium drivetrain Niner SIR 9 2-Star Mountain Bike - 2019, Medium front wheel Niner SIR 9 2-Star Mountain Bike - 2019, Medium cockpit Niner SIR 9 2-Star Mountain Bike - 2019, Medium crank Niner SIR 9 2-Star Mountain Bike - 2019, Medium detail 1 Niner SIR 9 2-Star Mountain Bike - 2019, Medium detail 2 Niner SIR 9 2-Star Mountain Bike - 2019, Medium detail 3
2019 Medium SKU: BMT14882

Niner SIR 9 2-Star Mountain Bike - 2019, Medium

Condition: PRE-OWNED
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.

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.

Paint chipping to down tube, drive side seatstay, non-drive side seatstay, and chainstay.

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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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Specifications

Year 2019
Brand Niner
Model SIR 9 2-Star
Size Medium
Frame Material Steel
Drivetrain SRAM, 1x12 spd
Weight 28 lbs 14 oz
Fork RockShox Judy
Fork Travel 120mm
Rear Shock N/A
Rear Shock Travel N/A
Brakes SRAM Level, Disc Brakes - Hydraulic
Shifters SRAM NX Eagle, Mechanical
Front Derailleur N/A
Rear Derailleur SRAM NX Eagle
Crankset SRAM NX Eagle, 32t, 175 mm
Cassette SRAM NX Eagle PG-1230, 12spd, 11-50t
Chain SRAM
Handlebar Race Face Aeffect R alloy, 780 mm
Headset Niner internal
Stem Race Face Aeffect R alloy, 35.0 mm x 40mm, 0°
Seatpost Niner alloy, 30.9mm
Seatpost Travel N/A
Saddle Niner Custom w/ cr-mo rails
Front Axle Spacing 15x110mm Boost (Thru-Axle)
Rear Axle Spacing 12x148mm Boost (Thru-Axle)
Wheelset Front: Stan's NoTubes ZTR Flow S1 alloy, Rear: Niner alloy, Front: Stan's Neo, Rear: Niner alloy
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.

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“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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