First the key data: a carbon frame in tube-to-tube construction (in frame sizes 45, 48, 51, 54, 57 and 60 centimeters), an Ultegra Di2 Disc brake/shift group, plus wheels with DT Swiss 240s hubs in combination with Notubes Iron Cross rims and DT Swiss Competition spokes, and the whole thing garnished with add-on parts from the Koba component range. The result of these ingredients? A disc-braked racing bike that is remarkably light at 7.4 kilograms and remains moderately priced at CHF 5,570.

On the new bike, Jan Koba says: "The braking behavior is similar to the bike, which is not surprising because the Ultegra disc brake has adopted the technology from the Shimano XT disc brakes. You brake with one finger, whether wet or dry, you have the brakes fully under control. This gives you a huge advantage in terms of safety."

Koba also praises the new gear system: "Another advantage is the perfectly functioning electronic Shimano Ultegra Di2. Shimano uses the brake/shift levers, which offer plenty of space to accommodate the required oil reservoirs thanks to the shifting electronics."

Koba has also worked on the look: The battery is built into the seat post and all cables are routed inside the frame. The custom bike specialist comments: "The look is therefore very tidy, you almost don't notice that it's a racing bike with disc brakes."

www.koba.ch