Racers who want a boutique aero-light bike. O2 VAM is the climbing sibling; LS is gravel.
Factor's aero-all-rounder: light enough to climb, aero enough to race, and a stiff, precise race bike that reviewers keep measuring against the Tarmac SL8.
Aero racers. If you want light and conventional, R5; if you want endurance, Caledonia.
The aero Cervelo: V-stem, deep tubes, and a bike that wants to be ridden fast in a straight line and still corners better than its looks suggest.
Racers who want BMC's classic race fit. Roadmachine if you need stack.
BMC's lightweight race bike: steep, precise, and a WorldTour stack/reach reference. Less aero than Teammachine R / Timemachine.
| Measurement |  FactorOstro VAM 2027 |  CerveloS5 2022 |  |
|---|---|---|---|
| Stackmm | 565 | 565 | 565 |
| Reachmm | 392 | 392 | 392 |
| Head tube angle° | 73.3 | 73.0−0.3 | 72.3−1.0 |
| Seat tube angle° | 73.5 | 73.0−0.5 | 73.5 |
| Chainstaymm | 405 | 410+5 | 410+5 |
| Wheelbasemm | 987 | 994+7 | 1000+13 |
| BB dropmm | 70 | 70 | 69−1 |
| BB heightmm | — | — | — |
| Standovermm | — | — | — |
| Part | Ostro VAM 56 | S5 56 | Teammachine SLR 56 |
|---|---|---|---|
| Stem | 100 mm | 100 mm | 100 mm |
| Bar | 420 mm | 420 mm | 420 mm |
| Crank | 172.5 mm | 172.5 mm | 172.5 mm |
... Cervélo S5 frameset (includes seat post, forks, handlebars/stem, BB fittings): $6,500. Bike review – 2019 Cervelo S5 part 01, unboxing. @ride ...
Cervelo S5 Ultegra Di2 Disc ; Cons: Expensive, 35mm-deep wheels don't get the best out of the frame ; FORK · Cervélo All-Carbon, Tapered S5 Fork For Disc ; FRONT ...