The SIR 9 is a comfortable, capable, hand-built bike made from proven, air-hardened, heat-treated Reynolds 853 steel. When you're spinning up the steeps, bombing down the backcountry, and grinding out the final miles as the sun sinks into the horizon, you need a bike you can trust.
Seeking simplicity, silence, and a single speed drivetrain? Look no further than our 3-Star Shimano XT single speed build. Mated to our SIR 9 frame and FOX suspension, your single-speed adventures are ready and waiting.
- Niner alloy wheels, 30mm internal width
- Shimano SLX cranks and Niner Cogalicious cog
- KS LEV Si dropper post
|Frame||Hand welded Reynolds 853 steel; external cable routing; integrated bottle, bag, rack and fender mounts; 12x148 thru axle|
|Fork||Fox 34 Float Factory EVOL Fit 4, 3 Position W/Adj, Kashima Coat, 120mm, 110x44mm Offset|
Front: Niner Alloy, 30mm Internal Width, 110x15mm
Rear: Niner Alloy, 30mm Internal Width, 148x12mm
Front: Schwalbe Nobby Nic Evo Super Trail TLE Addix Speedgrip 2.6"
Rear: Schwalbe Nobby Nic Evo Super Trail TLE Addix Speedgrip 2.35"
|Bottom Bracket||Niner Biocentric 30|
|Crankset||Shimano SLX M7000, 32T|
|Cassette/Freewheel||Niner Cogalicious 20T|
|Chain||SRAM 1 sp|
|Brakes||Shimano XT M8100, Metal Pad W/Fin|
|Rotors||180/160 XT RT86|
|Brake Levers||Shimano XT M8100|
|Handlebars||Race Face Next R 800mm Wide, 20mm Rise, 35mm Clamp|
|Tape/Grips||Niner Grrrips L/O Soft Compound|
|Stem||Race Face Turbine R 40mm, 35mm Clamp|
|Headset||Niner Internal ZS SHIS Description ZS44/28.6|ZS56/40|
|Seatpost||KS LEV Si|
|Saddle||Niner Custom TR With CrMo Rails, Embossed Niner Graphic|
|Accessories & Extras||Stans No Tubes Sealant (2 x 2oz Bottles)|
* Subject to change without notice.