Cervelo Caledonia-5 Ultegra Di2 Bike
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Cervelo Caledonia-5 Ultegra Di2 Bike
Cervelo Caledonia-5 Ultegra Di2 Bike Info
The Cervelo Caledonia-5 Ultegra Di2 Bike was built for what Cervelo calls "Big, Stupid Rides" — ultra-distance efforts at race pace, where equipment needs to hold up physically and mentally for hours on end. Since the original Caledonia arrived in 2020, the platform has found a devoted following among riders who want the precision and responsiveness of a Cervelo race bike with the comfort and range to go longer than common sense would suggest. The Caledonia-5 refines that formula with targeted structural updates, practical storage solutions, and a build spec that's genuinely ready to race the day it arrives.
Two key structural changes define the Caledonia-5 relative to its predecessor. First, the seat stays are dropped — the same approach Cervelo used on the Aspero gravel bike — which makes the rear triangle more vertically flexible and absorbs road chatter over long days in the saddle. Second, the downtube has been stiffened to preserve the crisp, pro-level responsiveness the Caledonia platform is known for under hard efforts. The result is a frame that gives where it should and doesn't where it shouldn't: compliant at the contact points, firm through the drivetrain. Aero tube shaping and fully internal cable routing reduce drag across the entire front end, while fender mounts come standard — an honest acknowledgment that riders who cover serious distance will eventually find themselves in the rain. New to the Caledonia-5 is a practical in-frame storage compartment: sized for a tube, multi-tool, and CO2, accessible through a glove-friendly flip-lock hatch tucked cleanly into the downtube.
The Ultegra Di2 build is anchored by Shimano's 12-speed electronic groupset in full R8100/R8150/R8170 spec — derailleurs, levers, and calipers are all current-generation Ultegra Di2. The crankset is a Shimano Ultegra R8100 fitted with a 4iiii Precision Pro GEN3+ Dual Sided power meter, measuring both legs independently for a complete power picture on every ride. A 52/36 chainring with an 11-34 Ultegra cassette covers the full range of terrain the Caledonia is designed for. Rolling stock is Reserve 42|49TA carbon wheels on DT Swiss 350 hubs — an asymmetric setup where the 42mm front rim optimizes handling and crosswind stability while the 49mm rear adds aerodynamic efficiency where wind matters most. Vittoria Corsa N.EXT TLR tires in 700x30 provide a premium tubeless-ready racing surface, and a pair of Arundel Mandible carbon bottle cages arrive already mounted. Max tire clearance is 36mm for riders who want more volume on rougher roads.
Design Benefits
- Dropped seat stays for vertical compliance. Cervelo borrowed the seat stay configuration from the Aspero gravel bike, making the rear triangle more acute and vertically flexible. Combined with a stiffer downtube, the frame absorbs road input at the saddle while staying responsive under power — a deliberate, two-directional stiffness tuning approach.
- Asymmetric Reserve 42|49TA wheelset. The front and rear rims are different depths by design: the 42mm front prioritizes stability and crosswind handling; the 49mm rear adds aerodynamic efficiency where drag penalty is lower. DT Swiss 350 hubs provide reliable, serviceable bearing performance across high-mileage use.
- 4iiii dual-sided power meter standard. The Ultegra R8100 crankset comes factory-fitted with a 4iiii Precision Pro GEN3+ that measures both left and right leg output independently. Riders get full power data without a separate purchase or compatibility concern.
- In-frame storage. The downtube-integrated compartment holds a tube, multi-tool, and CO2 — accessible through a flip-lock hatch that works with gloves on. A genuine quality-of-life feature for long-distance riding that doesn't compromise the clean visual profile of the frame.
- Fender mounts and Arundel carbon cages included. The Caledonia-5 ships with removable fender mounts, a front computer mount, rear accessory mount, and a pair of Arundel Mandible matte UD carbon bottle cages. The bike is equipped for real riding from the start.
Final Take
The Cervelo Caledonia-5 Ultegra Di2 is a fast endurance road bike with an honest set of design priorities: aero where it helps, compliant where it counts, and equipped for the kind of riding that tests equipment as much as riders. The dual-sided power meter, asymmetric wheelset, and in-frame storage are substantive details that reflect careful decisions about what long-distance riders actually need. For those chasing big days with race-level performance, the Caledonia-5 delivers Cervelo's race bike character in a format built to last all day.
Cervelo Caledonia-5 Ultegra Di2 Bike - Specifications
*Specifications are subject to change.
Cervelo Caledonia-5 Ultegra Di2 Bike Geometry
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Shipping bikes can be tricky. They are big and bulky but delicate. Shipping your passion / investment is nothing we take lightly. We go through great detail to ensure your new ride will get to you in perfect condition.
So you've purchased the bike of your dreams! We've put together this video to outline the R&A concept of shipping bikes and the steps we take to get you your new bike in perfect condition. It will show you the careful steps we take to assemble your bike to make it as easy as possible for you to get your bike on the road when you receive it. Ready to ride. It will also show you the tips and tricks of removing all of your parts in the most careful way to ensure your riding as quickly as possible.
