Cervelo R5 Force AXS Bicycle

The gap between a race frameset and a finished race bike usually comes down to component choices, and the R5 Force AXS Bicycle from Cervelo arrives at a claimed 6.23 kgs with a powermeter crankset, carbon wheels, and tubeless race tires already fitted. The frame underneath is a claimed 651 grams in size 56, with 298 grams for the all-carbon tapered fork, and a complete size 56 R5 in its top builds reaches 5.97kg, a full 900 grams under the UCI minimum weight limit. Cervelo cut 100 grams from the frame and fork of this generation and pulled another 326 grams out of its own components across the bike. That accounting matters here, because the savings are spread through the cockpit, wheels, and hardware rather than concentrated in the carbon, which is how a SRAM Force build still lands well below the weight ceiling that governs sanctioned racing. The R5 is the climbing and all-round race platform in the lineup, running alongside the aerodynamically driven S5 rather than replacing it.

Geometry is where this generation departs quietly from the one before it. Cervelo left the handling numbers nearly untouched, aside from a small change to bottom bracket drop to account for 29mm tires, and rewrote the fit geometry to match the S5 so riders moving between the two models land in the same position. The bottom bracket sits 2mm lower so the system works with 29mm rubber, and official frame and fork clearance is 34mm, leaving 4mm of space all around. Trail holds at 57.3mm across every size, managed through size-specific fork offsets that run from 57.5mm on the 48 down to 45.5mm from the 54 upward. Chainstays stay at 410mm regardless of size, which keeps the rear end compact as reach grows from 368.7mm to 408.3mm. The 73° head tube angle applies from the 54 up, with the two smallest sizes relaxed to preserve toe clearance.

Two details are worth settling before purchase. The R5 is built around electronic drivetrains and disc brakes only, and the one-piece HB18 cockpit is specified per frame size rather than chosen at the counter, so handlebar width and stem length arrive as a matched unit. Tube sections across the frame are generally smaller than the previous generation, yet overall bottom bracket stiffness increased by 13 percent. Fully internal cable routing accounts for a claimed 25 grams of drag reduction, and the seatpost clamp area swapped a bulky rubber cover for an integrated version. The frame uses Cervelo's BBright bottom bracket system, with an asymmetric shell that widens the drive side structure without adding material elsewhere. If you want a dedicated climbing frame that still clears mixed-surface tires, the clearance figure is doing real work here.... Read More