Ultegra Di2 takes all year-round riding to a new level. With Tubeless tyres mounted on our own Whyte carbon rims and the all new Ultegra disk brakes consistent control in all weather is guaranteed.Shimano's new Di2 Ultegra gives the rider more control over shifting, Whyte have fitted a bar mounted junction box/display, so the rider can see battery life and adjust shifting settings with ease.The ability to fit full length mud guards makes the Wessex arguably the most versatile and capable carbon road bike we have ever made.Shimano Ultegra flat mount disc brakes / Schwalbe S-One Pro tubeless ready tyres / Whyte 21mm wide carbon rims/ Shimano Di2 Shifting and wide range cassette.