S5 Dura-Ace Di2 Road Bike

The Cervelo S5 Dura-Ace Di2 pairs Shimano's 12-speed Di2 groupset with a frame that Cervelo says trims over 6 watts and about 124 grams from the outgoing S5, concentrated at the fork and head tube. The new one-piece HB19 bar and stem replaces the outgoing two-piece front end, tightening tolerances without adding a second set of bolts to torque. Cervelo and Reserve tuned the 57|64 wheelset specifically for this frame's tube shapes instead of adapting an existing mold, so the aero numbers reflect wheel and frame working together as one system.

What Our Gearhead® Experts Are Saying:

"Every shift on the Dura-Ace Di2 lands in the exact gear I asked for, even when I'm two hours in and shifting on reflex instead of feel. That kind of consistency is what lets me commit to a sprint without hesitating over whether the chain will actually move when I hit the button."

Heads up! We do our best to keep bike specs and images current, but occasional component changes can happen without warning, and sometimes the photos might not show the exact build you'll receive. If you want to double-check the details, our Gearhead® Experts are always here to help.