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.
- All measurements based on a FOX 80mm travel fork with 44mm rake offset and the EBB in the 6 o'clock position
- 31.6mm seat post, 400mm length recommended
- 73mm bottom bracket shell
- 34.9mm seat clamp diameter
GEOMETRY
| SMALL (IN/MM) | MEDIUM (IN/MM) | LARGE (IN/MM) | X-LARGE (IN/MM) |
| (A) EFFECTIVE TOP TUBE LENGTH | 23.1/587 | 23.75/603 | 24.5/622 | 25.25/641 |
| (B) SEAT TUBE LENGTH | 15.5/394 | 16.5/419 | 19/483 | 21.5/546 |
| (C) CHAIN STAY LENGTH | 17.3/440 | 17.3/440 | 17.3/440 | 17.3/440 |
| (D) FRONT CENTER | 25.3/643 | 25.8/656 | 26.5/673 | 27.3/693 |
| (E) WHEELBASE | 42.3/1073 | 42.7/1085 | 43.5/1104 | 44.3/1124 |
| (F) BB DROP | 2.8/70 | 2.8/70 | 2.8/70 | 2.8/70 |
| (G) HEAD TUBE LENGTH | 3.5/90 | 3.9/100 | 4.3/110 | 5.1/130 |
| (H) SEAT TUBE ANGLE | 73° | 73° | 73° | 73° |
| (I) HEAD TUBE ANGLE | 71.5° | 72° | 72° | 72° |
| STAND-OVER HEIGHT | 27.8/706 | 28.6/728 | 30.7/780 | 32.8/832 |
| HEIGHT RECOMMENDATION | 5'3"-5'9"
1.6-1.75m | 5'8"-6'
1.73-1.83m | 5'11"-6'3"
1.8-1.91m | 6'3"-6'7"
1.91-2.01m |