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Sorry, this Niner SIR 9 Mountain Bike - 2020, Medium has been sold.

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Niner SIR 9 Mountain Bike - 2020, Medium

Item #BMT28227
Condition: Certified Pre-Owned
Fit Range: 5'7" - 5'10"
Regular price

Trade In
Every Certified Pre-Owned bike passes our 141-point inspection
  • Frame integrity verified
  • All components inspected
  • Drivetrain cleaned and tuned
  • Suspension adjusted
  • Wheels trued

Our RideFast shipping means this bike gets to you quickly and securely. Domestic US ground rates are a flat $135 for regular bikes or $150 for e-bikes.

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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30-Day Returns

If this bike isn't perfect for you, our Ride Guides will help you find the right one.

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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.
Master Mechanic’s Notes
  • The fork has been professionally serviced by our in-house suspension experts and is ready to ride
  • Bike is in excellent condition
  • Bike is set up with 27.5" wheels, 27.5"+ tires & 27.5" fork.
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Year 2020
Brand Niner
Model SIR 9
Size Medium
Frame Material Steel
Drivetrain SRAM, 1x11 spd
Weight 29 lbs 11 oz
Fork RockShox 35 Gold RL
Fork Travel 120mm
Rear Shock Travel N/A
Brakes TRP G-Spec Trail SLC, Disc - Hydraulic
Shifters SRAM NX , Mechanical
Rear Derailleur SRAM NX
Bottom Bracket Shell Threaded
Crankset Shimano MT511, 32t, 175mm
Cassette SRAM XG-1150, 10-42t
Chain Shimano
Handlebar Ritchey Comp Rizer Alloy , 740mm
Headset Niner
Stem Ritchey Alloy , 31.8mm x 90mm, 6°
Seatpost Ritchey Comp Alloy, 30.9mm
Saddle Selle Italia Boost
Front Axle Spacing 15x110mm (Boost)
Rear Axle Spacing 12x148mm Boost
Wheelset Ibis 6000 Series Aluminum Tubeless Ready , Ibis
Front Tire WTB Ranger TCS, 27.5" x 2.8"
Rear Tire WTB Ranger TCS, 27.5" x 2.8"
Tire Type Tubeless
Tubeless Compatibility Wheels are tubeless compatible but ships with tubes installed
Pedals Sold separately
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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 141 points of inspection.

Bikes are meant
to be used.