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Niner introduces the versatile ROS 9, a 4130 Cro-Mo steel frame that can be run as a single speed - using Niner's own super light BioCentric II bottom bracket - or a geared bike with a replaceable derailleur hanger. This frame is built for abuse and the downhill spec geometry makes it a blast to ride. Niner designed the ROS 9 to be a burly trail ripper with super-short chainstays and a slack head tube angle that can accommodate 120mm to 140mm travel fork. Once again, Niner's attention to detail can be seen on every aspect of this frame. The unique dropout design allows 142x12 Maxle use and accommodates a stout alloy derailleur hanger or a single speed insert for a perfectly clean look. The custom butted 4130 Cro-Mo main triangle uses size specific tubing with exceptionally clean welds and is drilled for internal dropper post routing and a proprietary MRP XCG bash guard. Other details include custom drawn S-bend chain stays and seat stays, an oversized tapered headtube and a stainless steel head badge. Essentially, the ROS 9 is the perfect all mountain hardtail machine, made to Ride Over Shit (ROS). Headset is included.
If the size you need is not in-stock, please feel free to order. We'll have it here in a matter of days.
Frame: Custom drawn 4130 Cro-Mo main triangle with size specific tubing, tapered head tube, Cane Creek headset, internal dropper post cable routing, 12x142mm thru axle, tabs under BB shell for custom MRP XCG Bash Guard, BioCentric II bottom bracket, Niner seat collar and 2 year warranty. Recommended Fork Travel: 120-140mm. Wheel Size: 29". Seatpost: 31.6mm Frame Weight (Med): 6.1lbs. Sizes: SM, MD, LG or XL. Color: Rally Blue or Forge Grey.