The Niner JET 9 RDO has now fully evolved from a cross country machine to a true fast trail bike with shorter chainstays and slacker head tube angles. With a Boost 148mm frame standard, 120mm of rear wheel Niner CVA travel, ISCG 05 tabs, new [R]Evolution geometry that handles both 29" and 27.5" Plus wheels and tires, as well as the full-on RDO carbon treatment, the Jet 9 RDO is ready to tackle aggressive XC/trail and more depending on your optimal configuration. Climbing, technical capability, nimble handling and control; with 29ers it used to be, as the saying goes, pick two. Now you don't have to.

Boost spacing for the rear triangle has been a game changer for many designs, and for the JET 9 RDO the opportunity to add tire clearance (29" to 2.5", 27.5+ to 3"), shorten the chainstays (to 434mm) and add frame stiffness from the 12/148mm rear dropout and new bottom bracket junction. Combined with the bump from 100mm to 120mm of rear wheel travel, the overall combination delivers a much more capable design. By changing the front end to accommodate a longer front center position with a shorter stem and wider handlebar, and moving to a 29er geometry optimized for a 130mm fork delivered a 67.5° headtube angle (140mm 67° with 27.5+). Now the design is much more capable on technical descents, with back-end flickability and front-end quickness pure trail riders absolutely require. No more compromises for the JET nameplate.

The RDO-level carbon frames from Niner are also no compromise. The premium quality carbon materials and advanced Niner CCS process uses rigid internal molds, which increases the level of compaction and precision in wall thickness. This reduces resin build-up from the compaction process and the end result is a frame that is internally clean and clear of excess material, and much greater control over the construction itself. The light, stiff frame features the 12/148mm Boost rear drop out, with a replaceable derailleur hanger and increased lateral stiffness from the bottom bracket to the rear axle, resulting in better power transfer. The wider bottom bracket junction and the tapered headtube also benefit greatly from CCS, creating a frame that exhibits much improved torsional stiffness.

Niner's patented 29er specific suspension design is called CVA, for Constantly Varying Arc travel and has been optimized for this 120mm JET 9 RDO. The lower pivot sits under the bottom bracket, creating an instant center location in front of the BB. A dual linkage system then reacts with counter force to suspension load. This essentially isolates the drivetrain from the suspension, maintaining pedaling efficiency throughout the travel range, and basically eliminating the snap-back that can occur with many suspension designs as the suspension unloads. Sag setting is crucial, because just past sag, the axle path moves inward, with a constantly varying arc, limiting chain growth throughout the travel range. The active suspension is handled by a CVA-specially tuned Fox EVOL shock. The Kashima Coat keeps action smooth and clean, while the manual lever allows the rider to easily select the most effective platform for the conditions. Niner makes all it's own excellent hardware, and the super stiff linkage is made from high pressure molded carbon. Enduro Max Black Oxide sealed bearings handle the action. The assembly delivers premium travel, but also combines with the stiffness of the front and rear triangles to deliver massive torsion resistance, which makes the bike respond immediately to rider input, whether under pedaling load or when blitzing into a hot corner where every millimeter of bike control is crucial.

The frame details are spot on for rider choice and set-up flexibility. Front triangle cable routing is largely internal, depending on your exact choices. This includes routing for internal or external dropper posts. Thinking of mountain Di2? The JET 9 RDO is electronic drivetrain wiring friendly, including integrated battery storage in the frame. Niner made a crucial decision in moving to a 73mm threaded bottom bracket interface, which eliminates some of the challenges of the oversized press-in systems. Given that SRAM, Shimano and Race Face offer threaded BB cranksets, riders are not limited, and properly installed, threaded BB's don't creak. The ISCG 05 mount gives you chain guide options you'd expect on a trail bike. A removable front derailleur mount is included, and you can run 1x or 2x drivetrain options. Please see the list below for chainring size limitations.

Hopefully you can see the true breadth of what Niner has accomplished with the JET 9 RDO. You get an exceptional trail ready frameset that offers you tremendous build flexibility without compromising on the true trail capabilities of the frame. Prefer 27.5+ 3" wide wheels and a 140mm travel fork? Go right ahead. Love the 29er experience on the trail and want to keep your bike light and agile at 130mm front travel, and can't live without a 2.5" tire? Great. Build it that way. Single chainring, double chainring, chainring guard, electronic? Internal or external dropper? You get the idea. If you are a dedicated trail rider that pushes beyond what an XC bike can achieve, but love to climb, descend, and carry serious speed, the Niner JET 9 RDO with [R}Evolution geometry and 120mm of frame travel is right for you. Sizing tip: in between sizes? Size down. Need more help than that, or want to discuss a build kit? Give us a call at (800)627-6664 and one of experienced staff of cyclists can talk you through the options and process. We believe the JET 9 RDO is can carry you further and faster than ever, with style and impeccable trail manners that shine through the mud and dust of every ride.