Orbea Orca Aero M20i LTD
T12257CK
This bike is available through the Cycle to Work Scheme
Unsure of your size?
Book a sizing appointment in our bike fit studio and get the right fit.
The Orbea Orca Aero M20i LTD is Orbea's aero race bike, built for riders who want more speed for the same effort. Its OMX carbon frame is shaped to cut through the wind at real-world angles, with integrated cabling and a clean, fast cockpit.
It's built around Shimano Ultegra Di2 electronic shifting and OQUO LTD carbon wheels. It's available in the latest 2027 colours and in 2026 colours, which differ slightly in wheels and finishing kit; the full spec for each is listed below.
Highlights
- Orbea Orca Aero OMX monocoque carbon frame and full-carbon OMX ICR fork
- Shimano Ultegra Di2 2x12 electronic groupset with hydraulic disc brakes
- OQUO Road Performance carbon wheels: RP50LTD on 2027 colours, RP45LTD on 2026 colours
- OC carbon aero cockpit with fully internal cable routing
- Power meter compatible BB386 frame with 12mm thru-axles
- Integrated OC storage box for tools and spares
Sizes and fit
Available in 47cm, 49cm, 51cm, 53cm, 55cm, 57cm and 60cm.
Colours
Golden Off White / Sunset (gloss), Royal Plum (matt) / Fantasy Purple C. View (gloss), Carbon Raw / Titanium (matt) and Golden White (gloss) / Carbon Raw (matt).
Frameset
- Frame: Orbea Orca Aero OMX carbon, monocoque, 1.5" head tube, BB386, power meter compatible, 12x142mm thru-axle, Speed Release compatible, internal cable routing, electronic and mechanical groupset compatible
- Fork: Orbea Orca Aero OMX ICR full carbon, tapered 1-1/8" to 1.5" steerer, 12x100mm thru-axle
- Headset: FSA 1-1/2" integrated aluminium cup
2027 colours
- Shifters: Shimano Ultegra Di2 ST-R8170
- Front derailleur: Shimano Ultegra Di2 R8150
- Rear derailleur: Shimano Ultegra Di2 R8150
- Chain: Shimano M8100
- Crankset: Shimano Ultegra R8100, 36/52t
- Brakes: Shimano Ultegra R8170 hydraulic disc
- Cassette: Shimano Ultegra R8100, 11-34t, 12-speed
- Wheels: OQUO Road Performance RP50LTD carbon
- Saddle: Fizik Vento Antares R1
- Cockpit: OC Carbon Cockpit RA10, integrated bar and stem
- Seatpost: OC Orca Aero RA11 carbon, 15-25mm setback, micro-tilt adjustment
- Tyres: Vittoria Corsa N.EXT G2.0 TLR, 700x29c
- Rotors: 160mm front, 140mm rear
- Storage: OC Storage Box SB-04 with case
2026 colours
- Shifters: Shimano Ultegra Di2 ST-R8170
- Front derailleur: Shimano Ultegra Di2 R8150
- Rear derailleur: Shimano Ultegra Di2 R8150
- Chain: Shimano M8100
- Crankset: Shimano Ultegra R8100, 36/52t
- Brakes: Shimano Ultegra R8170 hydraulic disc
- Cassette: Shimano Ultegra R8100, 11-30t, 12-speed
- Wheels: OQUO Road Performance RP45LTD carbon
- Cockpit: OC SH-RA10 Road Aero carbon integrated bar and stem, 80mm reach, 125mm drop
- Seatpost: OC Road Aero RA10 Carbon Ultralight, 0/25mm setback, micro-tilt adjustment
- Saddle: Prologo Scratch M5 PAS T2.0, 140mm
- Tyres: Vittoria Corsa N.EXT G2.0, 700x28c
- Storage: OC Aero Toolbox TB01PP
- Rotors: 160mm front, 140mm rear
| Size | 47cm | 49cm | 51cm | 53cm | 55cm | 57cm | 60cm |
|---|---|---|---|---|---|---|---|
| Stack (mm) | 495 | 504 | 520 | 540 | 560 | 578 | 604 |
| Reach (mm) | 370 | 375 | 380 | 385 | 390 | 397 | 404 |
| Seat tube length (mm) | 459 | 474 | 499 | 524 | 545 | 565 | 592 |
| Top tube (effective) (mm) | 505 | 518 | 530 | 543 | 555 | 571 | 584 |
| Head tube length (mm) | 84 | 92 | 107 | 122 | 145 | 163 | 190 |
| Head tube angle (°) | 70.8 | 71.3 | 72.2 | 72.8 | 73 | 73.2 | 73.2 |
| Seat tube angle (°) | 74.5 | 74 | 73.7 | 73.5 | 73.5 | 73.2 | 73.2 |
| Chainstay length (mm) | 408 | 408 | 408 | 408 | 408 | 408 | 408 |
| BB drop (mm) | 78 | 78 | 78 | 78 | 76 | 76 | 76 |
| BB height (mm) | 265 | 265 | 265 | 265 | 267 | 267 | 267 |
| Wheelbase (mm) | 966 | 971 | 973 | 974 | 985 | 995 | 1009 |
| Fork length (mm) | 368 | 368 | 368 | 368 | 368 | 368 | 368 |
| Fork offset (mm) | 48 | 48 | 48 | 43 | 43 | 43 | 43 |
| Trail (mm) | 68.6 | 65.4 | 59.7 | 61.2 | 59.9 | 58.6 | 58.6 |
| Standover (mm) | 723 | 734 | 754 | 776 | 798 | 816 | 842 |
From Orbea's Orca Aero OMX 2027 Blue Paper (technical manual). Applies to 2027 Orca Aero models; earlier Orca Aero colours use the previous frame. Chainstay and fork length are the same in every size. Trail is for 700x30mm tyres.
Free UK shipping available on all orders, excluding bikes, wheelsets and packages over 10kg in weight e.g. turbo trainers.
