SUM Ultegra Di2 Competition Safe for carbon fiber

Safe for carbon fiber

Slightly cropped and ready to meet your favourite high-waisted tights

(1) Torpedo Versa Breather Valve

This design helps in maintaining toe separation effectively while providing support during movement

Hard Hitters: BG66 Force

SUM Ultegra Di2 Competition Safe for carbon fiberDecisions, decisions made easy. With a bike that gives you flat out advantage on the climbs, the sprints and the straightaways, the only decision youll need to make is how nice you want to be to the other guys. A rider oriented design approach ensures a frame that is both rooted and responsive, with a ride experience most aero frames cant match. With a layup engineered to maximize aerodynamics while keeping weight low, the design process for the Sum