Aero 360º
Speed is built layer by layer: questioning every detail, exploring every angle and relentlessly searching for every advantage.
Free watts, built into the system
Taking Orca Aero to the next step meant rethinking aerodynamics beyond the wind tunnel, examining how rider and machine work together to deliver a claimed 21W saving over the previous bike.
A Different Approach to Aero
With aero performance already highly optimised, meaningful gains require a new approach. Instead of chasing results at a single wind angle, development is focused on real-world conditions, where crosswinds and varying yaw angles dominate.
Head Tube
The sharpest, narrowest head tube possible for a standard fork design reduces frontal area without resorting to complex or offset solutions. This system supports a broader size range, meets UCI regulations, and saves on weight compared to more complicated alternatives. The height is reduced as a result of the lowered bottom bracket.
Fork
The fork is carefully profiled to align with the downtube, ensuring a smooth airflow transition even at varying yaw angles. This approach avoids optimisation for a single head-on condition, preserving aerodynamic efficiency in crosswinds. We maintain enough clearance for a wide range of tire widths, without resorting to oversized fork profiles that compromise aerodynamic performance.
Downtube
A slightly wider downtube is shaped to manage airflow efficiently, ensuring aerodynamic performance is preserved across the frame’s largest surface. Particular focus was placed on performance at 5–20° yaw angles, which account for the majority of real-world crosswind conditions.
Bottom Bracket Keel
Building on the previous Orca Aero frame, we extended the bottom bracket keel to enhance its aerodynamic contribution. This refined lower structure manages airflow around the frame’s underside, reducing drag in a key transition area.
Seat Tube and Seat Post
Strategically moving the Di2 battery to the lower part of the frame allowed us to create a slimmer profile for both the seat tube and seat post. This change reduces drag compared to the previous generation while maintaining structural efficiency through the centre of the frame.
Seat Stays
Slimmer seat stays with lower junction points optimise stiffness and weight while introducing a touch of vertical compliance.
Minimal Rear Dropout Design
A compact rear dropout optimised around the UDH standard reduces weight while improving integration. Discreet Di2 cable routing keeps the rear triangle clean and uncluttered.
Aero in Every Corner
Every piece of the frame has been refined millimetre by millimetre, reducing drag in the highest-impact areas first.
Wind Tunnel Proven
Aerodynamic gains initially developed through CFD analysis on the previous bike are validated in the wind tunnel using fairings. Repeatable, real-world conditions ensure those gains translate into performance riders can experience on the road.
High Speed Efficiency Test
In this test, riders maintain a series of fixed speeds and we measure their power output. An indoor velodrome provides constant, repeatable conditions so the only change is the aerodynamics. This makes it possible to calculate the real-world impact of aerodynamic drag, in Watts, for any given speed.
Validated Gains
Aerodynamic development does not stop at design. Every refinement is challenged and verified before making it onto the final bike.
Integrated for Speed
The OC RA10 Carbon Cockpit is exceptionally light, combining fully internal routing, ergonomic tops and sprint-ready stiffness in one seamless system.
Flush Bottlecages
New cages have been positioned lower in the frame and carefully shaped to be flush for seamless airflow around the downtube and seat tube.
Service Box
The integrated Service Box keeps tools, tubes and essentials cleanly stored while shaping airflow around the frame.
OC RA11 Aero Seatpost
A lightweight aero-profile seatpost with low-stack clamping designed to reduce drag. Precise adjustment and universal saddle compatibility ensure a clean, integrated setup.
Low Stack saddle
Developed in special collaboration with Fizik, this discreet, low-profile saddle integrates cleanly with the seatpost.
Wheel-downtube Integration
The downtube shape is designed to closely match the front wheel, creating a smooth airflow transition and reducing turbulence at the wheel–frame interface. Specifically engineered in collaboration with OQUO to be the most efficient with the RA57 LTD wheels.
Engineered as One System
Aerodynamic performance comes from making every element work together: frame, cockpit, bottle cages, storage and wheels.
Drag eliminated on the flat by eliminating instability
-14Wat 50 km/h
Stack & Reach
A low stack and long reach create a performance-focused riding position, supporting an efficient posture and stability at speed.
Size-specific Trail
Size-specific fork trail gives optimum control no matter what frame size.
Two Low-Stack Seat Posts; more Setback range
Choose between two seatpost options, 0/10 seatpost and 15/25 seatpost. The reversible clamp provides maximum range, with 10 mm of adjustment, making it easy to find the perfect position.
Streamlined Saddle Clamp
A lightweight saddle clamp uses a simple two-bolt design to deliver secure, precise adjustment with minimal complexity. The system allows independent tilt and setback adjustment.
Stable Race Handling
A lower centre of gravity, refined geometry and precise positioning reduce unwanted movement, helping maintain speed with less wasted effort.
Precise Fit Cockpit
The OC SH-RA10 integrated cockpit is available in 13 sizes of handlebar width and stem length combinations, ensuring a precise fit tailored to the rider’s body.
Core Strength
An enlarged downtube–bottom bracket junction increases global frame stiffness, improving power transfer under pedaling load.
Powerspine
A slightly wider downtube reinforces stiffness along the main load path, improving efficiency during sustained pedaling.
Size-Tuned Stiffness
Larger frames naturally flex more, yet bigger riders need more support. Our size-tuned stiffness ensures every frame feels equally responsive and efficient.
Efficient, not uncomfortable
With special shaping of the rear triangle and greater seatpost exposition, we engineer some vertical compliance into the ride. It doesn't detract from efficiency but does have a noticeable impact on comfort.
Power savings on an 8% climb
As rider power output continues to rise with the increasing level of the sport, so do the forces acting on the frame, requiring greater stiffness to maintain efficiency. We achieve this increase in stiffness without adding weight, through refined carbon layup and material selection.
Power Transmission
Engineered for rigidity where it counts, with targeted stiffness in key frame zones and size-tuned construction.
Global Frame Stiffness
Weight alone does not define performance. Global frame stiffness determines how effectively power is transferred, ensuring effort is converted into speed rather than lost to flex. At 900 g with 93 Nmº stiffness, structural efficiency is prioritized over chasing the lightest possible number for an aero frame. The overall stiffness to weight ratio from the previous generation has improved 27.5%.
Integrated Beyond Aerodynamics
Clean integration protects the frame, simplifies setup and keeps the bike race-ready without sacrificing speed.
Base Configuration Highlights
Base Configuration
Orca Aero Build Specification
Complete component specification for the Shimano 105 Di2 equipped build.
Frameset
- Fork
- Orbea Orca Aero OMX ICR, full carbon, 1-1/8" - 1.5" tapered head tube compatible, Thru axle 12x100mm, thread M12x2 P1, Speed Release compatible dropout.
- Frame
- Orbea Orca Aero Carbon OMX disc, monocoque construction, HS 1.5", BB386, powermeter compatible, Thru Axle 12mm x 142mm rear, thread M12x2 P1, Speed Release compatible, internal cable routing, EC/DC compatible.
- Headset
- FSA 1-1/2" Integrated Aluminium Cup
Drivetrain
- Crankset
- Shimano 105 R7100 36x52t
- Shifters
- Shimano Di2 R7170
- Cassette
- Shimano 105 R7100 11-34t 12-Speed
- Rear derailleur
- Shimano 105 Di2 R7150
- Front derailleur
- Shimano 105 Di2 R7150
- Chain
- Shimano M6100
Cockpit
- Handlebar
- Integrated Bar and Stem OC SH-RA10, Road Aero Carbon, Reach 80, Drop 125
Brakes
- Brakes
- Shimano R7170 Hydraulic Disc
- Rotors
- 160mm Front / 140mm Rear
- Configuration
- N/A
Wheels
- Wheels
- OQUO Road Performance RP50TEAM
- Tyres
- Vittoria Corsa N.EXT 29-622 TLR wide rim G2.0 OEM HP
- Front Axle
- Orbea Thru Axle 12x100mm M12x1 Lite
- Rear Axle
- Orbea Thru Axle 12x142mm M12x1 Lite
Components
- Saddle
- Fizik Vento Antares R3 Kium Rail 140mm
- Seatpost
- OC Road Aero RA11 Carbon, SB25
Accessories
- Handlebar Tape
- OC Components
- Storage
- OC Toolbox SB04
Geometry & Sizing
Orca Aero Fit Data
Frame geometry and rider height guidance for the Orbea Orca Aero M10i LTD PWR.
Geometry Reference
Geometry reference image supplied for the Orca Aero 2027. Numbers correspond to the geometry table below.
Sizing Chart
| Frame size | Rider height | Approx. height |
|---|---|---|
| 47cm | 155–160 cm | 5'1"–5'3" |
| 49cm | 160–166 cm | 5'3"–5'5" |
| 51cm | 167–172 cm | 5'6"–5'8" |
| 53cm | 173–179 cm | 5'8"–5'11" |
| 55cm | 180–185 cm | 5'11"–6'1" |
| 57cm | 186–191 cm | 6'1"–6'3" |
| 60cm | 192–207 cm | 6'3"–6'9" |
Sizing is a guide only. Fit, flexibility and position preference can move riders between adjacent sizes.
Geometry Chart
Orca Aero M11e LTD PWR — all linear measurements are in millimetres unless stated otherwise.
| No. | Concept | 47 | 49 | 51 | 53 | 55 | 57 | 60 |
|---|---|---|---|---|---|---|---|---|
| 1 | Seat Tube (C-T) | 459 | 474 | 499 | 524 | 545 | 565 | 592 |
| 2 | Top Tube (EFF) | 505 | 518 | 530 | 543 | 555 | 571 | 584 |
| 3 | Head Tube | 84 | 92 | 107 | 122 | 145 | 163 | 190 |
| 4 | Chainstay | 408 | 408 | 408 | 408 | 408 | 408 | 408 |
| 5 | BB Drop | 78 | 78 | 78 | 78 | 76 | 76 | 76 |
| 6 | BB Height | - | - | - | - | - | - | - |
| 7 | Wheelbase | 966 | 971 | 973 | 974 | 985 | 995 | 1009 |
| 8 | Head Angle | 70.8° | 71.3° | 72.2° | 72.8° | 73° | 73.2° | 73.2° |
| 9 | Seat Angle | 74.5° | 74° | 73.7° | 73.5° | 73.5° | 73.2° | 73.2° |
| 10 | Rake | 48 | 48 | 48 | 43 | 43 | 43 | 43 |
| 11 | Standover | 723 | 734 | 754 | 776 | 798 | 816 | 842 |
| 12 | Reach | 370 | 375 | 380 | 385 | 390 | 397 | 404 |
| 13 | Stack | 495 | 504 | 520 | 540 | 560 | 578 | 604 |
| 14 | Fork Length | 368 | 368 | 368 | 368 | 368 | 368 | 368 |
| 15 | Trail | 68.6 | 65.4 | 59.7 | 61.2 | 59.9 | 58.6 | 58.6 |
Product Information
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