If you're ruinning 26" forks, then you'll need a 190mm rotor and a #5 caliper for the front. The Try-All/Hope brakes only come in #5 caliper version, its just that the +30mm mount on the 26" forks makes the brake require a 190mm rotor (160 on a mod). The brake's workings are all identical, its just the anodising colours, the rotor and the laser etchings that are different (oh, and the price!). Cheers Adam