Compatible with all bicycle types (including those with disc brakes) and carrier bars for cars (up to 80 x 50 mm) Compatible with all wheel sizes, thanks to the new swing system of the rear wheel mount Extended adjustment range for the distance between front and rear wheel (up to 520 mm) Super-resistant aluminum body with quick locking system Pre-assembled, easy to use, compact. Recommended for racing bicycles, as an adapter for quick release and 12mm thru axle is included