Niner SIR 9 29 - 3-Star - XT 1x - Cross Country - Artic White

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keyboard_arrow_right Description

Niner SIR 9

SIR 9

At a time when carbon super bikes (including our own flagship models) dominate the stage, why would Niner shine a spotlight on the SIR 9? Perhaps it’s better to ask “just what is it about steel bikes?” Why, when we get on a steel frame, are we instantly transported back to that first bike we had as a kid? Why is steel just as relevant today as it was 50 years ago while other materials have come and gone?

There wasn’t anything wrong with our SIR 9 – like other Ninerds we ride it and love it. But something about Steel being equated with Retro seemed almost unfair to such a great bike. There is simply no reason frames built with one of the best metals on the planet shouldn’t benefit from and take full advantage of cool technologies like updated headsets standards, tapered forks and through axles.

Introducing the new SIR 9 – all the fun, all the advantages, all the steel.

keyboard_arrow_right Features

  • Custom engineered steel tubeset for ideal function and ride quality
  • Custom bent double-butted Reynolds 853 DZB down tube
  • 44mm Reynolds 631 head tube allows use of tapered or 1-1/8” forks
  • Niner BioCentric II Bottom bracket system and removable down tube cable stops allows clean singlespeed or geared setup
  • 142x12 rear Maxle
  • Post mount brake bosses between seat stay and chainstay
  • Investment cast stay bridges and dropouts

keyboard_arrow_right Specifications

Field a loyal and trusty steed without breaking the bank. Our 3-Star Builds offer the best technical features from each manufacturer with an eye for substance over style. Great for riders who want a sweet bike but know that it's the engine that counts.

  • FRAME: SIR 9 - BLAZE YELLOW and ARCTIC WHITE
  • Fork: FOX 32 FLOAT FACTORY FIT4, 3 POSITION W/ ADJ, KASHIMA COAT, 100MM, 110X15MM
  • Wheels: STAN'S NOTUBES NEO/ZTR ARCH EX, 110X15MM FRONT, 142 X 12MM REAR
  • Tires: MAXXIS IKON 3C/EXO/TR 2.35 F, 2.20 R
  • Brakes & Rotors: SHIMANO XT M8000 ICE TECH PADS, 180/160MM RT86 ICE TECH ROTORS
  • Brake Levers: SHIMANO XT M8000
  • R/ Shifter: SHIMANO XT M8000 11SP I-SPEC II
  • F/ Shifter: SHIMANO XT M8000 2/3SP I-SPEC II (IF APPLICABLE)
  • R / Derailleur: SHIMANO XT M8000 GS 11SP SHADOW PLUS
  • F / Derailleur: SHIMANO XT M8000 11SP (IF APPLICABLE)
  • Cassette: SHIMANO XT M8000 11-42T
  • Chain: SHIMANO XT HG-600 11SP
  • Crank Set: SHIMANO XT M8000 36/26T (32T 1X)
  • Bottom Bracket: SHIMANO XT MT80
  • Saddle: NINER CUSTOM WITH CR-MO RAILS, NINER GRAPHIC
  • Seat Post: NINER CARBON SEAT POST, 400MM, NINER GRAPHIC
  • Handlebar: NINER FLAT TOP CARBON, 710MM, NINER GRAPHIC
  • Stem: NINER ALLOY STEM, NINER GRAPHIC
  • Grips: NINER GRRRIPS L/O NYLON

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