The instructions below came with my new bars and I have copied them exactly. The Spinaci light is the newest evolution of the Spinaci concept for racing extensions, the first extensions omologated by the UCI in Lausanne in 1994. The new Spinaci light is easily mounted on any yype of bike handlebars, but yhey fit well also for bikers who are not used to racing.......... Mounting the Spinaci Light, it is not necessary removing or altering the gear levers. The clips must be positioned on the handlebarn as close as possible to the reinforcement zone (sleeve or bulge). Then pull grade by grade the three brugles until they meet the blocking couple to impede the rotation of the padding during use. Cinelli recommends the maximum value of blocking couple: 1, 5 kmg. The ergonomic system with double fulcrum allows to reach the suitable position. So, before proceeding with definitive screwing, choose the position most congenital. Cinelli recommends a maximum angle in relation to the horizontal plane of between -5° and 30° for the clip and between +5° and 30° for the extensions. Anyway it is possible to find different positions due to the morphology of the athlete or bicycle. So....I now know how to fit them.