The assault has long been one of the best selling wheels in the reynolds line and it just keeps getting better it now sports a modern tubeless ready rim channel and 25mm width to provide lower rolling resistance and a smoother ride its both lighter and stiffer than its predecessors and also offers the added benefit of a 41mm depth with our enhanced slg technology to give you every aero advantage available in clincher or tubular specifications weight tubular set 1315g tubeless set