Orbea Orca geometryRoad · 2027 · 7 sizes, from 47 to 60

The Orbea Orca is a road bike available in 7 sizes, from 47 to 60. Stack ranges from 506 to 616 mm and reach from 370 to 404 mm. Its position sits between racing and endurance. All sizes share 408 mm chainstays.

Stack506–616mm

Reach370–404mm

Head angle71.0–73.2°

Chainstay length408mm

Agile rear

What size Orca do I need?

Enter the stack and reach of a bike that fits you well and we will tell you which size is closest and how to set it up.

Stack in mm Reach in mm Compare on Fitbikefy →

47S 506 · R 370

49S 515 · R 375

51S 533 · R 380

53S 552 · R 385

55S 572 · R 391

57S 590 · R 398

60S 616 · R 404

Enter your stack and reach to see which size fits you best.

Geometry chart by size

Measurements in mm and degrees, as published by Orbea. The ones that matter most for choosing a size are in bold.

Size	47	49	51	53	55	57	60
Stack	506	515	533	552	572	590	616
Reach	370	375	380	385	391	398	404
Effective top tube	510	523	536	549	560	576	590
Seat tube (centre-to-top)	440	460	480	500	520	540	570
Head tube length	111	118	135	153	173	191	218
Head angle	71.0°	71.5°	72.2°	72.8°	73.0°	73.2°	73.2°
Chainstay length	408	408	408	408	408	408	408
Wheelbase	972	975	980	981	991	1,002	1,016
BB drop	72	72	72	70	70	70	70
BB height	269	269	269	271	271	271	271
Fork length	365	365	365	365	365	365	365
Fork offset	48	48	48	43	43	43	43
Trail	66	63	58	60	59	57	57
Standover	737	749	768	789	809	827	853
Seat angle (method not stated)	74.5°	74.0°	73.7°	73.5°	73.5°	73.2°	73.2°

Source: Orbea official website · data from 11 Nov 2026.

Stack and reach of every size

Higher means a taller front end; further right means a longer reach. The blue dot is your search.

Character of each size

Compared with other road bikes. Further right means more of that quality.

Positionracing → relaxed

Steeringcalm → quick

Pedallingrearward → forward

Bottom brackethigh → low

Wheelbaselively → planted

Rear endstable → agile

Bikes with similar geometry (size 53)

The closest size of other road models, by stack and reach.

ModelΔ stackΔ reach

Pinarello Dogma F12 · 5402019−1 mm±0 mmCompare →

Pinarello DOGMA F 1 OF A KIND · 5102026−1 mm+0 mmCompare →

Pinarello DOGMA F EDIZIONE SPECIALE · 5102026−1 mm+0 mmCompare →

Pinarello Dogma F · 5102026−1 mm+0 mmCompare →

Wilier Triestina Rave SLR Road · M2025−1 mm−1 mmCompare →

Ridley Invenio Grifn A · S2026+1 mm+1 mmCompare →

Frequently asked questions

What size Orca do I need?

It depends on your position, not just your height. The most reliable way is to compare the stack and reach of a bike that fits you with those of each size (from 506/370 mm in size 47 to 616/404 mm in size 60). The size finder on this page shows the closest size and the stem and spacers you would need.

What are the stack and reach of the Orca in size 53?

Stack of 552 mm and reach of 385 mm, with an effective top tube of 548.5 mm and a head angle of 72.8°.

Is the Orca a racing or an endurance bike?

In between. In size 53 its stack-to-reach ratio is at percentile 45 of road bikes: neither very low nor very tall.