Shimano ultegra r780 brake levers for flat handlebars are calliper brake levers designed specifically for flat handlebars 222 mm diameter and are for use with super slr brake callipers using enhanced brake arch design dura ace 7900 ultegra 6700 105 5700 and tiagra 4600 the tough polished and anodised aluminium finish keeps weight low and your bike looking good reach and cable adjusters are included for easy set up