The game has changed the assault has been one of the best selling wheels in the reynolds line and it just keeps getting better the assault slg disc is the disc brake specific version for unsurpassed braking performance and it also sports a modern tubeless ready rim channel and 25mm width to provide lower rolling resistance and a smoother ride factor in the 41mm rim profile with our enhanced slg technology and youve got a fast wheel that can stop on a dime specification weight tubular