While some companies forgo race ready frames in smaller sizes due to the limitations of the 29er platform, Yeti feels that everyone deserves to ride the big wheel. For this reason, the ARC Carbon Mountain Bike Frame is available with the same ride feel using a 27. 5 inch wheel on its Small and X Small frames, with the entire frame proportioned for the rider. Although the ARC is based on the design of the Big Top, it was never available in smaller sizes. For this reason, the new ARC Small and X Small frames have been given shorter chainstays and a lower bottom bracket and standover height to improve handling with the 27. 5 inch wheels. These seemingly small differences make the ride feel consistent across the model. And while the original ARC, which was an Alloy Racing Composite, comes with a bit of history, Yeti took a leap into the future by employing its carbon knowledge to the ARC, In doing so, it is significantly lighter than the Big Top. And while it is Yeti's first carbon hardtail, Yeti has extensive experience with the black magic that is carbon fiber. It is constructed as a monocoque design to lend strength to the frame by eliminating joints. It features a tapered head tube for a 100 120mm range fork, and a rear 12x142mm rear axle. The looptail rear triangle is configured with posts for disc brakes. While the bottom bracket is a substantial 73mm, it has removable ISCG mounts.