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Niner SIR 9 Steel Mountain Bike - 2019, Small

Item #BMT27976
Condition: Certified Pre-Owned
Fit Range: 5'3"- 5'9"

Trade In
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Every Certified Pre-Owned bike passes our multi-point inspection
  • Frame integrity verified
  • All components inspected
  • Drivetrain cleaned and tuned
  • Suspension adjusted
  • Wheels trued
Shipping

Our RideFast shipping means this bike gets to you quickly and securely.

Quick Assembly
  • Bikes arrive tuned and mostly pre-assembled
  • Torque tool & video guide included
  • Get riding in 15 minutes
Canadian Customers

Please note that any duties, taxes, or surcharges as required by Canadian customs and provincial authorities will be the buyer's responsibility. Shipping to Canadian addresses may take longer than expected due to customs.

Guaranteed Buyback

We'll happily purchase this bike back from you when you're ready for your next upgrade. A TPC buyback offer is guaranteed for 18 month on all qualifying bikes.

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Yes SIR

Why We Love It
The Niner SIR 9 frame is able to save weight and increase strength by taking advantage of Reynolds 853 steel's super durable and super light characteristics. Niner excitedly claims this bike falls into a geometry category they call "Trail Country", fitting between a cross country racing machine and a trail bike. If off-road touring is your jam, this bike also has copious rack, fender, bottle cage, and bag mounts allowing this bike to transform into a kick-butt long adventure bike-packing rig.
Upgrades
  • SRAM Eagle AXS Controller w/ SRAM GX Eagle AXS rear derailleur
Master Mechanic’s Notes
  • New bottom bracket
  • New KMC chain
  • Light cable rub on head tube
  • Light scuffs & scratches on inner rear triangle
  • Light wear and tear from cable rub, heel rub & chain
  • Small paint chips on seatstays & drive-side top tube
Specifications
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Details
Year 2019
Brand Niner
Model SIR 9
Size Small
Frame Material Steel
Drivetrain SRAM, 1x12 spd
Weight 28 lbs 7 oz
Build
Fork FOX Factory Series 34 FLOAT
Fork Travel 120mm
Rear Shock Travel N/A
Brakes Shimano XT M8000, Disc Brakes - Hydraulic
Shifters SRAM Eagle AXS Controller , Electronic
Rear Derailleur SRAM GX Eagle AXS
Bottom Bracket Shell Press fit
Crankset Truvativ Stylo Alloy, 32t, 170 mm
Cassette SRAM GX Eagle XG-1275, 10-50t
Chain KMC
Handlebar Race Face Next Carbon, 760 mm
Headset Niner Integrated
Stem Race Face Aeffect Alloy, 35.0 mm x 50mm, 0°
Seatpost KS LEV Si, 30.9mm
Seatpost Travel 150mm
Saddle WTB Silverado
Front Axle Spacing 15x110mm Boost (Thru-Axle)
Rear Axle Spacing 12x148mm Boost (Thru-Axle)
Wheelset Roval Traverse SL Carbon Tubeless Compatible, Roval
Front Tire Maxxis Ardent EXO TR, 29" x 2.25"
Rear Tire Maxxis Ardent EXO TR, 29" x 2.25"
Tire Type Tubeless
Tubeless Compatibility Wheels are tubeless compatible but ships with tubes installed
Charger Included Yes
Pedals Sold separately
Geometry
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Bike geometry chart
Inspected. Tested. Trusted.

What is CPO?

CPO bikes are gently ridden bikes that have been meticulously inspected, restored and serviced. Every CPO bike is cleaned, tuned and tested in our top-of-the-line Colorado headquarters. Road, mountain, ebike or gravel, TPC services each bike over 8 phases and multiple points of inspection.

Learn More

Bikes are meant
to be used.