The Cervelo Caledonia 5 Ultegra Di2 is built for the kind of day that starts before sunrise and ends on roads that were never meant to be smooth. A full carbon endurance platform with 36mm tire clearance, dropped seatstays for vertical compliance, and in-frame storage for a tube, flat kit, and CO2 so a puncture doesn't end the ride. Shimano Ultegra Di2 electronic shifting and stock dual-sided power data mean the drivetrain and training setup work together from the first pedal stroke, with nothing left to source or install before the ride counts. What Our Gearhead(R) Experts Are Saying:"The dual-sided 4iiii power meter is already on the crank, which means I can dial in training zones from the first ride instead of budgeting for it separately. The dropped seatstays absorb road chatter on long days without softening the power transfer."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(R) Experts are always here to help.