Niner S.I.R. 9 29Er Mountain Bike Frame

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Item Number:100037588
Manufacturer:
Niner
Color:Rootbeer
Size:LARGE
Status:No Longer Available
Price:$848.95 
  

The S.I.R. 9 is the most versatile bike in the Niner stable, fusing the steel is real feel of Reynolds tubing with the ability to run the frame as either a geared bike or single speed. The S.I.R. 9 uses the same custom drawn Reynolds 853 tubing as the M.C.R. 9 and combines it with Niners ultra-light eccentric bottom bracket. Custom breezer style forged dropouts have a replaceable alloy derailleur hanger and come with an insert piece for running the bike as a single speed to eliminate the unnecessary derailleur hanger for a clean look.
Niners own EBB, at 100 grams, is the lightest eccentric bottom bracket on the market. In addition to being light, its extremely functional. The EBB has more swing than any other EBB, over a full link, so you will never have to hunt down a half link to get correct chain tension and vertical dropouts mean youll never have to futz with the disc brake to remove the wheel
 
 



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