Cervélo has launched new R Series bike, which are the Canadian brands straight-up road race machines. Indeed, the R5 already has grand tour experience, with Team Dimension Data’s Omar Fraile winning Stage 11 of the 2017 Giro d’Italia on the bike.
At launch, the R5 is available in three builds: Dura-Ace Di2 9150 for an MSRP of $9000; Dura-Ace 9100 for $$7000; and SRAM eTap for $9000. The R3 is available with Dura-Ace 9100 for $5000. Information on additional builds, including those for the R5 Disc and R3 Disc, will be available soon.
With the physical limits of manufacturing materials being strained, an analysis of how road bikes are used revealed that three interconnected factors — comfort, fit, and handling/stability — are responsible for the most pronounced performance benefits. Stiffness, weight and aero benchmarks had to improve, too.
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“The R Series has always been about achieving the lightest and stiffest solutions by including only those elements that need to be present,” explained Graham Shrive, Cervélo’s engineering design manager. “Now, we are using these uniquely efficient structural paths to focus on ride quality and experience.”
Indeed, extra vertical compliance can reduce fatigue and, in turn, boost power output. Wheel manufacturers’ wind-tunnel testing has also shown that wider tires can actually deliver aero benefits. For these reasons, tire clearance for the new R Series has been widened to 28mm. Combine this with a Cervélo-engineered aero seatpost for the R5, and vertical compliance is further increased while improving aerodynamics.
Data-driven fitting protocols and the overall trend toward a more TT-like riding position both fueled a new emphasis on fit. One of the real triumphs of the new R Series, claims Cervélo, is that it provides a greater range of fit options.
Dimension Data pros and other more performance driven riders favor a lower front end, which is why Cervélo developed a new pro fit for the R5. At the same time, Cervélo’s race fit has been maintained for the new R3.
A new handling geometry enhances stability and rider confidence with a lower BB and extended wheelbase.
The R5 and R3 are both available with either rim or disc brakes. While rim brakes are the standard, Cervélo believes discs represent the future of road bike design. They deliver superior braking performance, especially in inclement conditions, and by designing the R5 Disc and R3 Disc around the latest technology Cervélo has achieved additional benefits: Extra lateral stiffness in the fork, and improved ease-of-use and safety.
The new R series represents Cervélo’s stiffest-ever road frames, with stiffness-to-weight ratios that are fine-tuned to a range of high-performance riding styles. The pros who tested the R5 are adamant that stiffness equals speed, and they got exactly what they want: 21% stiffer at the headtube and 13% stiffer at the bottom bracket for rim-brake models, and 18% and 26% stiffer, respectively, when equipped with discs.
As a climbing weapon it almost goes without saying that lightweight design was a top priority for the R Series, with the R3 and R3 Disc frames being 10% and 16% lighter.
The new R5 boasts a 44-gram aero improvement over the previous generation. This is the result of an end-to-end aero improvement package that includes new Squoval Max tube shapes, a new seatpost, and an integrated all-carbon stem and bar. Featuring the same Squoval Max technology but a different fork, seatpost and cockpit, the R3 delivers a 17-gram improvement.
To learn more visit www.cervelo.com.