Jena's 60TON monocoque carbon frame comes in 5 sizes (from XS to XL) with geometries that allow a high level of comfort, without sacrificing reactivity and performance, which is very close to the one of Wilier's racing bikes. The head tube, with a more open angle, ensures riding quality and stability also on the most difficult tracks. On the other hand, the rear triangle was designed to have a more distinct response to vertical stress, absorbing thus great part of the vibrations generated by the ground imperfections.