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Versatility is the name of the game.
Single speed or gears! Niner's S.I.R. 9 proves that Steel Is Real! This Reynolds 853 frame is custom butted with size specific tubing. Super clean welds, custom drawn S-bend chainstays and seatstays. This frame is ultra versatile, build it as a single speed with Niner's EBB or add gears with a replaceable derailleur hanger.
Special drive-side drop out insert gives a clean look when riding the one gear set-up.
Custom S-bend stays give excellent heel and mud clearance, and will accomodate a 2.3" tire.
28.6 front derailleur clamp size. Niner recommends that the EBB is set in the forwardmost position if using a front derailleur
Requires a 27.2 seatpost, 400mm minimum length
30mm seatpost clamp not included
Now taking pre-orders
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