A climbing wheel rim with an aero advantage, designed to be ridden in the mountains and optimized for use with modern disc brake road bikes. Versatile carbon rim suitable for riding in mountainous terrain and in variable weather conditions Disc brake specific rim 20 hole front, 24 hole rear 21mm internal width Optimised for 25mm tyres Tubeless compatible Front - 390g, Rear - 397g Use ENVE brass spoke nipples only TECHNICAL SPECIFICATIONS RIM SPECS FRONT REAR Depth 38 42 Width 21 21 Hole Count 24 24 ERD 580 573 RTS 25mm 25mm Weight 390g 397g