Agreed. Avid Single Digit 7 will blow you away. Incredible, I have never felt better braking power on a 'v-brake' bike in my life. To get the most out of them for modulation and adjustment, get the matching Avid SD7 Levers. They give you 2 forms of adjustment, a 'limit' screw on the lever, and that nice red nob that adjusts the lever feel and tension, WITHOUT tensioning the cable
