Caledonia-5 Ultegra Di2

The Caledonia-5 lineup spans five electronic-only builds, split between SRAM and Shimano groupsets. The tier begins with the SRAM Rival AXS model, which establishes a high baseline by including a crank-based power meter and Reserve carbon wheels. Moving up the ladder, the mid-tier Shimano Ultegra Di2 and SRAM Force AXS builds offer weight savings and refined shifting. The Force AXS model includes a power meter, while the Ultegra Di2 build utilizes a thread-together FSA bottom bracket.

At the top of the range, the Shimano Dura-Ace Di2 and SRAM Red AXS models command premium pricing for flagship components. The Red AXS build features a power meter and a ceramic bottom bracket, while the Dura-Ace model receives a Ceramic Speed SL bottom bracket. Across all five builds, Cervelo specifies Reserve 42/49 carbon wheels—featuring a shallower front rim for crosswind stability and a deeper rear rim for aerodynamics—paired with 30mm Vittoria tubeless-compatible tires. While the entry-level Rival build represents the most accessible entry point, the Force and Ultegra models sit as the practical sweet spot for riders balancing high-end performance with overall cost.

Reviewers consistently praise the Caledonia-5 for balancing long-distance comfort with the aggressive responsiveness typical of Cervelo’s race heritage. On the road, the bike accelerates eagerly and holds speed well, with testers noting an "incredibly free-rolling feel" (Cycling Weekly) that makes it highly efficient on fast, flat sections. The revised carbon layup and wider tires effectively mute harsh pavement, delivering a "wonderful blend of pace, reactive handling and rut-reducing smoothness" (BikeRadar).

While the frame absorbs road chatter admirably, it remains stiffer than many dedicated comfort bikes. This rigidity pays off during hard efforts, as the bike "accelerates willingly" (Velomotion) and feels highly capable on climbs, though a few riders found it slightly heavy when accelerating from a standstill. The handling is generally described as stable and predictable rather than hyper-reactive, offering "great straight-line stability" (Velo) that requires a bit more rider input to carve through tight corners.

The primary criticism across reviews centers on the new downtube storage hatch. Multiple testers found the latch mechanism overly complex and frustrating to operate, noting that it requires specific bottle cage designs to open fully without interference. Additionally, several reviewers pointed out the steep pricing, noting that the bike demands a premium compared to similarly equipped competitors.