Niner S.I.R. 9 Medium Bike - 2017 drive side Niner S.I.R. 9 Medium Bike - 2017 non-drive side Niner S.I.R. 9 Medium Bike - 2017 sticker Niner S.I.R. 9 Medium Bike - 2017 drivetrain Niner S.I.R. 9 Medium Bike - 2017 front wheel Niner S.I.R. 9 Medium Bike - 2017 cockpit Niner S.I.R. 9 Medium Bike - 2017 crank
2017 Medium SKU: BMT12801

Niner S.I.R. 9 Medium Bike - 2017

Recommended Rider Height: 5'8" - 6' Size Guide
Condition: PRE-OWNED
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.

Light scratches and chips to rims.

Decals from rims have been removed.

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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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Year 2017
Brand Niner
Model S.I.R. 9
Size Medium
Frame Material Steel
Drivetrain Shimano, 1x11 spd
Weight 26 lbs 13 oz
Fork RockShox Reba
Fork Travel 100mm
Rear Shock N/A
Rear Shock Travel N/A
Brakes Shimano Deore XT 8000, Disc Brakes - Hydraulic
Shifters Shimano Deore XT 8000, Mechanical
Front Derailleur N/A
Rear Derailleur Shimano Deore XT 8000
Crankset Race Face Turbine, 32t, 175 mm
Cassette Shimano Deore XT 8000, 11spd, 11-46t
Chain Shimano
Handlebar Niner carbon, 710 mm
Headset Cane Creek integrated
Stem Niner alloy, 31.8 mm x 90mm, 6°
Seatpost Thomson Elite Dropper, 27.2mm
Seatpost Travel 125mm
Saddle Niner
Front Axle Spacing 15x100mm
Rear Axle Spacing 12x142mm
Wheelset alloy, Stan's NoTubes NEO
Front Tire Maxxis Ikon, 29" x 2.35"
Rear Tire Maxxis Ikon, 29" x 2.2"
Tire Type Clincher
Tubeless Compatibility NA

“I love this company! My beautiful bike arrived promptly, was packed brilliantly, and tuned perfectly. It was exactly as described.”

— Kari K.


“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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