Niner SIR 9 Frame Only - 2017

Niner SIR 9 Frame Only
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Details

Like a retro blast from the past, only updated to take advantage of modern mountain bike designs — Niner's SIR 9 holds true to the mantra that steel is real thanks to Reynolds 853 DZB construction. Add your favorite XC fork and annihilate your local tracks with the speed and capability of 29-inch wheels paired to a stiff and lively hardtail frame. And, the included BioCentric II adjustable bottom bracket lets you run it geared or singlespeed to suit your pleasure.

Specs

Frame Niner SIR 9
Headset Included
Axles 12x142mm Maxle Included
Bottom Bracket BioCentric II
Fork Compatibility 80mm–100mm-travel
Wheel Compatibility 29-inch
Accessories & Extras Derailleur Hanger, Single Speed Insert, Cable Retention Hardware, YAWYD, Seat Collar

* Subject to change without notice.