Orbea Orca
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 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 and fast club riders who want the modern Tarmac. If you came off an SL7, check that the stack/reach still matches your size.
The current Specialized race bike: lighter than SL7, still aero, and famously 'it just disappears' if the fit is right. Size by stack/reach — the 54/56 split is where a lot of riders hop.
| Measurement |  HoldsworthCorsa 2026 | HoldsworthCorsa 2025 |  OrbeaOrca 2022 |  SpecializedTarmac SL8 2025 |
|---|---|---|---|---|
| Stackmm | 551 | 551 | 552+1 | 544−7 |
| Reachmm | 387 | 387 | 385−2 | 384−3 |
| Head tube angle° | 73.0 | 73.0 | 72.8−0.2 | 73.0 |
| Seat tube angle° | 73.5 | 73.5 | 73.5 | 74.0+0.5 |
| Chainstaymm | 407 | 407 | 408+1 | 410+3 |
| Wheelbasemm | 990 | 990 | 981−9 | 978−12 |
| BB dropmm | 68 | 68 | 70+2 | 72+4 |
| BB heightmm | — | — | — | 268 |
| Standovermm | — | — | — | 768 |
| Part | Corsa 54 | Corsa 54 | Orca 53 | Tarmac SL8 54 |
|---|---|---|---|---|
| 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 |
As you'd probably expect, the Orbea Orca Aero is a rocket on the flats. It holds speed incredibly well and the comfortable position helps you to stay as aero as ...
Orbea Orca OMX First Ride Review - Aero, Light and Great Handling. @roadcc745 ... 2021 Orbea Orca OMR Review | An Endurance Racer That COULD Be Great.
That spec retails for £8,250 and is said to weigh 7.16kg in a size 56. You can read Sam's full review here. The Specialized Tarmac SL8 will be at the ...
# Specialized Tarmac SL8 Expert #### VERDICT: - Very Good - Quite good - Not so good ### Specialized SL8 Expert: Ride The SL8 was noticeably comfortable, but there was a sense o…