Climbers and riders who want a light Specialized that isn't a full aero race bike. Not an endurance bike.
A lightweight road bike without the Tarmac's aero brief. It climbs and floats; it does not try to be a Tarmac SL7 in a crosswind. The position is still race-adjacent, not Roubaix-tall.
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.
Gravel riders. Orca if you want road race; Occam if you want MTB trail.
Orbea gravel: stable, mounts, and a calmer chart than Orca. It wants mixed surfaces and longer days.
| Measurement |  SalsaWarbird 2027 |  SpecializedAethos 2022 |  |  OrbeaTerra 2023 |
|---|---|---|---|---|
| Stackmm | 591 | 565−26 | 570−21 | 596+5 |
| Reachmm | 395 | 387−8 | 390−5 | 398+3 |
| Head tube angle° | 71.8 | 73.5+1.7 | 72.5+0.7 | 72.0+0.2 |
| Seat tube angle° | 73.0 | 73.5+0.5 | 73.5+0.5 | 73.2+0.2 |
| Chainstaymm | 430 | 410−20 | 410−20 | 430 |
| Wheelbasemm | 1054 | 991−63 | 996−58 | 1058+4 |
| BB dropmm | 74 | 72−2 | 69−5 | 76+2 |
| BB heightmm | — | — | — | — |
| Standovermm | — | — | — | — |
| Part | Warbird 57.5 | Aethos 56 | Teammachine SLR 56 | Terra L |
|---|---|---|---|---|
| Stem | 100 mm | 100 mm | 100 mm | 110 mm |
| Bar | 420 mm | 420 mm | 420 mm | 440 mm |
| Crank | 172.5 mm | 172.5 mm | 172.5 mm | 175 mm |
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