The brake lever kit includes both the front brake lever and the rear brake lever. Both levers are Adjustable Plus: in addition to the lever-knob distance control system, positioned above for greater accessibility, they also have a sliding system that allows the length adjustment of the lever itself. In addition, the kit includes two technopolymer inserts to be used to eliminate the gap that is created when the lever is at its maximum extension (up to 20 mm), thus avoiding wear on the gloves.