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Orbea Orca Aero chases watts, concedes the trade-offs
Orbea released the fourth-generation Orca Aero on 2 July 2026, ahead of the Tour de France. The bike runs a 78mm bottom bracket drop, claimed among the lowest on the market, and clears tyres up to 37mm officially. Orbea gets there by trading away certainty elsewhere: a lower bottom bracket raises pedal-strike risk in hard corners, and the frame's own aero storage box won't appear on Lotto-Intermarché's bikes because it isn't UCI-legal.
What this means
Lotto-Intermarché will race the new Orca Aero at the Tour de France without one of its advertised aero features, the downtube storage box, because it isn't UCI-legal.
The Orca Aero's case for speed isn't built on frame shape alone. Orbea credits the new Orca Aero with 5.1 watts of aerodynamic benefit from hardware alone, and a combined 21-watt gain with rider position at 50kph versus the previous model. Wider tyres do real work too: Orbea claims a 6–7 watt saving on cobbles at 40kph running 40mm tyres. But the geometry that unlocks the low bottom bracket and tyre volume comes with a built-in caution — Orbea itself flags the pedal-strike risk and offers shorter cranks via its MyO builder to compensate. And the storage box, worth a claimed 1.1 watts at 50kph, stays on the retail bike while the team that races it leaves it off entirely, for UCI compliance. The brand's own choices read as an admission that not every gain translates to the pro peloton.
Sources
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