Niner ROS 9 2-Star GX1 - 2016

Niner ROS 9 2-Star GX1
Price is for bicycle as defined in specifications.
  • Price is for bicycle as defined in specifications.
  • Color: Forge Grey
This item is currently not available.


Built of tough 4130 chromoly, Niner’s ROS 9 wants to plummet down loose, washed-out scree chutes and loft steep rollers while you fight back the giggles. ROS’s beefed up tube set takes advantage of Niner’s innovative rear dropout design which makes it easy to set up the ROS exactly the way you want it—with gears, single speed, whatever turns your lights on—all with the acceleration and responsiveness you get from a 142 x 12mm through-axle in the back.

Niner thought of everything when they designed the ROS, adding internal dropper post routing, removable front and rear derailleur hangers, and even integrated MRP bash guard mounts on the bottom bracket shell. The 44mm head tube allows you to run a tapered fork, greatly increasing front end rigidity so your ROS tracks straight where you aim it. That means when you dive into shenanigans that might trouble Mom, you’ll having the tools to ride it out and show up to Sunday brunch more or less intact.

Niner gave you all the essentials for a go-anywhere trail bike when they spec’d the ROS 2-Star build. A 140mm-travel Fox 34 Float Performance fork masterfully handles whatever chunder you get yourself into. The SRAM GX1 1 x 11-speed drivetrain gives you a wide range of gears for all the trail’s ups and downs in a clean, lightweight setup. Speaking of down, you’ll be glad you have a set of powerful SRAM DB5 hydraulic disc brakes to slow your marginally-controlled self before you blow through the curve, the barbed wire, and into Old Man Brown’s lower pasture. And, just to make the most of every section of trail, Niner threw on a KS dropper post, allowing you to instantly adjust your style from King of the Mountain to snowball headed…well, you know. Irreverently enjoy all your riding on the ROS 2-Star.


Frame 4130 chromoly, 142 x 12mm through-axle
Fork Fox 34 Float Performance, 140mm-travel, 110 x 15mm through-axle
Rims/Wheels Niner Alloy
Hubs see Rims/Wheels
Spokes see Rims/Wheels
Tires Maxxis Ardent SC EXO, Front: 29 x 2.4, Rear 29 x 2.25
Crankset SRAM S1000
Chainrings 32T
Rear Derailleur SRAM GX1 11-speed
Rear Cogs Shimano XT, 11-speed: 11-42
Shifters SRAM GX1
Handlebars Niner Flat Top, aluminum
Tape/Grips Niner Grrrips
Stem Niner TR Stem
Brake Levers SRAM DB5
Brakes SRAM DB5, 180/160mm rotors
Saddle Niner Custom, chromoly rails
Seat Post KS Dropzone R

* Subject to change without notice.


2016 Niner ROS 9

Part Numbers

Option UPC MPN
Forge Grey / Small 032311603908 03-231-16-03-90
Forge Grey / Medium 032311604905 03-231-16-04-90
Forge Grey / Large 032311605902 03-231-16-05-90
Forge Grey / X-Large 032311606909 03-231-16-06-90
Purple / Small 032311603267 03-231-16-03-26
Purple / Medium 032311604264 03-231-16-04-26
Purple / Large 032311605261 03-231-16-05-26
Purple / X-Large 032311606268 03-231-16-06-26