Factor O2 VAM
Climbers who want Factor. Ostro if you also care about aero.
Factor's lightweight race bike. Less aero than Ostro, still a low race fit.
Climbers who want Factor. Ostro if you also care about aero.
Factor's lightweight race bike. Less aero than Ostro, still a low race fit.
Climbers who want Factor. Ostro if you also care about aero.
Factor's lightweight race bike. Less aero than Ostro, still a low race fit.
Racers who want a climbing Orbea. Orca Aero is the wind-cheating sibling.
Orbea's lightweight race bike, OMX carbon on high kits, and a fit that is race-low without S5 drama. OMX vs OMR changes weight more than geometry.
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 |  FactorO2 VAM 2024 | FactorO2 VAM 2023 |  OrbeaOrca 2025 |  |
|---|---|---|---|---|
| Stackmm | 565 | 565 | 552−13 | 570+5 |
| Reachmm | 388 | 388 | 385−3 | 390+2 |
| Head tube angle° | 73.3 | 73.3 | 72.8−0.5 | 72.5−0.8 |
| Seat tube angle° | 73.2 | 73.2 | 73.5+0.3 | 73.5+0.3 |
| Chainstaymm | 405 | 405 | 408+3 | 410+5 |
| Wheelbasemm | 993 | 993 | 981−12 | 996+3 |
| BB dropmm | 70 | 70 | 70 | 69−1 |
| BB heightmm | — | — | — | — |
| Standovermm | — | — | — | — |
| Part | O2 VAM 56 | O2 VAM 56 | Orca 53 | Teammachine SLR 56 |
|---|---|---|---|---|
| Stem | 100 mm | 100 mm | 90 mm | 100 mm |
| Bar | 420 mm | 420 mm | 400 mm | 420 mm |
| Crank | 172.5 mm | 172.5 mm | 170 mm | 172.5 mm |
Today the O2 VAM is officially available with Factor describing it as the “world's fastest climbing bike”. Claimed weight for the frame is just 730g for a size ...
# First ride review: Factor O2 VAM – Aiming for the peaks? 28.12.2023 ![Factor VAM O2 2023 Test Review WEB 8652 1 2000x500](https://granfondo-cycling.com/wp-content/uploads/site…
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