What Our Gearhead(R) Experts Are Saying:"The 105 Di2 shifts cleanly from the bar-end satellites and holds its adjustment through rough roads and rack mounts without any mechanical drift. The 4iiii single-sided power meter is already on the crank, so training and racing with data starts from the first ride."Why We Like ItThe P-Series is the first Cervelo tri bike to offer internal frame storage, and the 105 Di2 ships with everything in place: in-frame rolls for a tube and flat kit, a Smartpak top tube bag, and a rear hydration mount all included. The D-shaped steerer and round stem interface keep fit adjustments straightforward when position changes between events or seasons. 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.