The One 9 is the lightest production 29er single speed frame on the market. Made with the same custom drawn Easton GX2 Scandium as its geared brother, the One 9 delivers high performance through advanced tubing and tubing manipulation. From the outset, the One 9 had seemingly simple design objective: create the best-riding single speed possible. This meant that we wanted a blazing fast frame, with no discernible flex at the bottom bracket or through to the rear wheel without creating an overly harsh ride. We went to Easton, and worked directly with them on the tube set to meet these goals, creating a frame that did exactly what we were after: a fast, nimble, but comfortable ride.

In addition to the front triangle, the rear s-bend chain stays and seat stays do more than look good. The tubing has been shaped for maximum horizontal stiffness while still allowing for some vertical compliance. Rounding out the package is Niner’s own super light eccentric bottom bracket, allowing for easy wheel removal with the disc brake and versatility in EBB positions (high or low) to tune your ride for your terrain and riding style.

The One 9 fuses the most technically advanced tube set on the market with the simplicity of a single speed and proven Niner geometry to give you a completely fresh riding experience. No chain chatter, no gears, just pure, unadulterated fun.

No more creaks, no more rounded EBB shells, no more debate about which system is best. Niner’s new Bio-Centric bottom bracket system eliminates ALL of the issues with any eccentric bottom bracket system in an amazingly simple way: It’s a two piece design.

One of the Bio-Centric’s cups goes into the frame on the driveside of a normal 68mm EBB shell. The other goes into the frame on the non-drive side. There is an offset bolt that goes in from the non-drive side cup and threads into the drive side cup. The combination of this offset bolt, and the close tolerance of the Bio-Centric cup’s internal fit means that the threads for the bottom bracket line up automatically. Rotate one cup around the EBB shell, and the other will rotate with it, keeping the threads for the bottom bracket aligned. Any minor mis-alignment of these threads will be corrected once the bottom bracket and cranks are installed.

The final part of the puzzle, the one that solves all of the current EBB problems, are the flanges on the outside of the Bio-Centric’s cups. These flanges go ALL the way around the EBB shell, and clamp down against the side wall of the shell as the offset bolt is tightened.

The One 9 frame retails for $849.00 and includes the Niner Bio-Centric Bottom Bracket.

To order a Niner bicycle, find and contact your local dealer here. If you do not have a local dealer, contact us.