Jolanda Neff's bike has attracted a lot of attention this season because of its concealed suspension system. Now Trek is pulling back the curtain and presenting the Supercaliber cross-country rocket with IsoStrut suspension. Reduced to 60 millimetres at the rear and 100 millimetres of travel at the front, the eye-catcher offers the characteristics of a full-suspension bike but the efficiency of a hardtail.