Cervelo R5 Red AXS
In stock at 1 shop in New York City
Prices and stock checked Oct 22.
Where to buy
1 shopAbout this bike
There are light bikes, and then there is the Cervelo R5 Red AXS Bike. At 5.97kg in a size 56 — 900 grams below the UCI minimum weight limit — this is a machine built with a singular obsession: going uphill faster than should be physically possible. Every gram has been accounted for, every system reconsidered. The result is a climbing road bike that does not feel like it should exist at this weight, yet rides with the composure and precision of something far more substantive.
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The R5 frame comes in at 651 grams — 130 grams lighter than its predecessor, a 16% reduction from an already-lean platform. The all-carbon fork adds 298 grams. Cervelo achieved these numbers through a full rethink of the layup, not just a material upgrade. The geometry tells you exactly what this bike is built for: rapid acceleration out of switchbacks, relentless climbing efficiency, and confident, predictable descending on technical mountain roads. Seat tube angles range from 74.5° in the smaller sizes down to 73° for larger frames, with constant 410mm chainstays across the entire size run for consistent rear-end responsiveness regardless of what size you ride. Crucially, the fit geometry mirrors the S5, so riders who split time between the R5 and Cervelo's aero platform can step on either bike without readjusting their position.
The integrated one-piece carbon cockpit contributes meaningfully to the weight story — eliminating roughly 150 grams compared to a conventional bar-and-stem setup — while improving aerodynamics by approximately 2 watts. It is a system that benefits you on the flats before the climbing starts and costs you nothing once the road tilts up. The Reserve 34|37 SL wheelset was developed specifically for the R5, saving an additional 60 grams over the previous wheel pairing while maintaining pro-tier stiffness via DT Swiss 180 hubs. The wheels run tubeless-compatible and ship with Vittoria Corsa Pro Speed TLR tires in 700x26, with clearance for rubber up to 34mm.
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