bike geometry

Orca Aero 2026

Name: Orca Aero 2026
Brand: Orbea

Compare size-specific bike geometry, including reach, stack, angles, wheelbase and the measurements that influence fit and handling.

Orbea › Orca Aero › Standard › Orca Aero

Orca Aero geometry measurements

Choose the recorded size and configuration. Geometry figures can change by size; RideDNA does not collapse those values into one misleading answer.

What is the reach of the Orca Aero?

Reach is the horizontal distance from the bottom bracket to the top of the head tube. Also searched as frame reach.

Configuration	Size	Reach	Source
Orca Aero geometry	51	379.2 mm	RideDNA-derived
Orca Aero geometry	53	385 mm	RideDNA-derived
Orca Aero geometry	55	390.9 mm	RideDNA-derived
Orca Aero geometry	57	398.3 mm	RideDNA-derived
Orca Aero geometry	49	375.1 mm	RideDNA-derived
Orca Aero geometry	60	403.5 mm	RideDNA-derived
Orca Aero geometry	47	369.4 mm	RideDNA-derived

What is the stack of the Orca Aero?

Stack is the vertical distance from the bottom bracket to the top of the head tube. Also searched as frame stack.

Configuration	Size	Stack	Source
Orca Aero geometry	51	515.6 mm	RideDNA-derived
Orca Aero geometry	53	533.4 mm	RideDNA-derived
Orca Aero geometry	55	554 mm	RideDNA-derived
Orca Aero geometry	57	571.9 mm	RideDNA-derived
Orca Aero geometry	49	498.3 mm	RideDNA-derived
Orca Aero geometry	60	597.8 mm	RideDNA-derived
Orca Aero geometry	47	489.1 mm	RideDNA-derived

What is the effective top tube of the Orca Aero?

Effective top tube is the horizontal distance between the head-tube and seat-tube centerlines. Also searched as ETT, virtual top tube, horizontal top tube.

Configuration	Size	Effective top tube	Source
Orca Aero geometry	51	530 mm	RideDNA-derived
Orca Aero geometry	53	543 mm	RideDNA-derived
Orca Aero geometry	55	555 mm	RideDNA-derived
Orca Aero geometry	57	571 mm	RideDNA-derived
Orca Aero geometry	49	518 mm	RideDNA-derived
Orca Aero geometry	60	584 mm	RideDNA-derived
Orca Aero geometry	47	505 mm	RideDNA-derived

What is the head tube angle of the Orca Aero?

Head tube angle describes the steering-axis angle relative to the ground. Also searched as HTA, head angle, steering angle.

Configuration	Size	Head tube angle	Source
Orca Aero geometry	51	72.2 °	RideDNA-derived
Orca Aero geometry	53	72.8 °	RideDNA-derived
Orca Aero geometry	55	73 °	RideDNA-derived
Orca Aero geometry	57	73.2 °	RideDNA-derived
Orca Aero geometry	49	71.3 °	RideDNA-derived
Orca Aero geometry	60	73.2 °	RideDNA-derived
Orca Aero geometry	47	70.8 °	RideDNA-derived

What is the seat tube angle of the Orca Aero?

Seat tube angle describes the seat-tube angle relative to the ground. Also searched as STA, seat angle, effective seat angle.

Configuration	Size	Seat tube angle	Source
Orca Aero geometry	51	73.7 °	RideDNA-derived
Orca Aero geometry	53	73.5 °	RideDNA-derived
Orca Aero geometry	55	73.5 °	RideDNA-derived
Orca Aero geometry	57	73.2 °	RideDNA-derived
Orca Aero geometry	49	74 °	RideDNA-derived
Orca Aero geometry	60	73.2 °	RideDNA-derived
Orca Aero geometry	47	74.5 °	RideDNA-derived

What is the wheelbase of the Orca Aero?

Wheelbase is the distance between the front and rear wheel axles. Also searched as axle-to-axle length.

Configuration	Size	Wheelbase	Source
Orca Aero geometry	51	970.6 mm	RideDNA-derived
Orca Aero geometry	53	971.5 mm	RideDNA-derived
Orca Aero geometry	55	982.9 mm	RideDNA-derived
Orca Aero geometry	57	993.8 mm	RideDNA-derived
Orca Aero geometry	49	968.5 mm	RideDNA-derived
Orca Aero geometry	60	1006.8 mm	RideDNA-derived
Orca Aero geometry	47	963.8 mm	RideDNA-derived

What is the chainstay length of the Orca Aero?

Chainstay length, also called rear center, is the distance from the bottom bracket to the rear axle. Also searched as Chainstay, rear center, rear centre.

Configuration	Size	Chainstay length	Source
Orca Aero geometry	51	400.5 mm	RideDNA-derived
Orca Aero geometry	53	400.5 mm	RideDNA-derived
Orca Aero geometry	55	400.9 mm	RideDNA-derived
Orca Aero geometry	57	400.9 mm	RideDNA-derived
Orca Aero geometry	49	400.5 mm	RideDNA-derived
Orca Aero geometry	60	400.9 mm	RideDNA-derived
Orca Aero geometry	47	400.5 mm	RideDNA-derived

What is the bottom bracket height of the Orca Aero?

Bottom bracket height is the vertical distance from the ground to the bottom bracket. Also searched as BB height.

Configuration	Size	Bottom bracket height	Source
Orca Aero geometry	51	262 mm	RideDNA-derived
Orca Aero geometry	53	262 mm	RideDNA-derived
Orca Aero geometry	55	264 mm	RideDNA-derived
Orca Aero geometry	57	264 mm	RideDNA-derived
Orca Aero geometry	49	262 mm	RideDNA-derived
Orca Aero geometry	60	264 mm	RideDNA-derived
Orca Aero geometry	47	262 mm	RideDNA-derived

What is the front center of the Orca Aero?

Front center is the distance from the bottom bracket to the front wheel axle. Also searched as front centre.

Configuration	Size	Front center	Source
Orca Aero geometry	51	575.4 mm	RideDNA-derived
Orca Aero geometry	53	576.3 mm	RideDNA-derived
Orca Aero geometry	55	586.9 mm	RideDNA-derived
Orca Aero geometry	57	597.8 mm	RideDNA-derived
Orca Aero geometry	49	573.4 mm	RideDNA-derived
Orca Aero geometry	60	610.7 mm	RideDNA-derived
Orca Aero geometry	47	568.7 mm	RideDNA-derived

What is the fork offset of the Orca Aero?

Fork offset is the perpendicular distance between the steering axis and the front axle. Also searched as fork rake, rake.

Configuration	Size	Fork offset	Source
Orca Aero geometry	51	48 mm	RideDNA-derived
Orca Aero geometry	53	43 mm	RideDNA-derived
Orca Aero geometry	55	43 mm	RideDNA-derived
Orca Aero geometry	57	43 mm	RideDNA-derived
Orca Aero geometry	49	48 mm	RideDNA-derived
Orca Aero geometry	60	43 mm	RideDNA-derived
Orca Aero geometry	47	48 mm	RideDNA-derived

What is the head tube length of the Orca Aero?

Head tube length is the measured length of the frame's head tube. Also searched as Head tube, head tube.

Configuration	Size	Head tube length	Source
Orca Aero geometry	51	107 mm	RideDNA-derived
Orca Aero geometry	53	122 mm	RideDNA-derived
Orca Aero geometry	55	145 mm	RideDNA-derived
Orca Aero geometry	57	163 mm	RideDNA-derived
Orca Aero geometry	49	92 mm	RideDNA-derived
Orca Aero geometry	60	190 mm	RideDNA-derived
Orca Aero geometry	47	84 mm	RideDNA-derived

What is the seat tube length of the Orca Aero?

Seat tube length is the recorded length of the frame's seat tube; measurement conventions can differ by manufacturer. Also searched as Seat tube, seat tube, frame size.

Configuration	Size	Seat tube length	Source
Orca Aero geometry	51	499 mm	RideDNA-derived
Orca Aero geometry	53	524 mm	RideDNA-derived
Orca Aero geometry	55	545 mm	RideDNA-derived
Orca Aero geometry	57	565 mm	RideDNA-derived
Orca Aero geometry	49	474 mm	RideDNA-derived
Orca Aero geometry	60	592 mm	RideDNA-derived
Orca Aero geometry	47	459 mm	RideDNA-derived

What is the standover height of the Orca Aero?

Standover height is the ground-to-top-tube height at the manufacturer's stated measurement point. Also searched as Standover, stand over height, standover clearance.

Configuration	Size	Standover height	Source
Orca Aero geometry	51	732.9 mm	RideDNA-derived
Orca Aero geometry	53	753.5 mm	RideDNA-derived
Orca Aero geometry	55	775.9 mm	RideDNA-derived
Orca Aero geometry	57	794.1 mm	RideDNA-derived
Orca Aero geometry	49	712.5 mm	RideDNA-derived
Orca Aero geometry	60	819.9 mm	RideDNA-derived
Orca Aero geometry	47	701.2 mm	RideDNA-derived

What is the fork length of the Orca Aero?

Fork length is the axle-to-crown distance recorded for the fork. Also searched as axle to crown, A2C.

Configuration	Size	Fork length	Source
Orca Aero geometry	51	368 mm	RideDNA-derived
Orca Aero geometry	53	368 mm	RideDNA-derived
Orca Aero geometry	55	368 mm	RideDNA-derived
Orca Aero geometry	57	368 mm	RideDNA-derived
Orca Aero geometry	49	368 mm	RideDNA-derived
Orca Aero geometry	60	368 mm	RideDNA-derived
Orca Aero geometry	47	368 mm	RideDNA-derived

What is the wheel flop of the Orca Aero?

Wheel flop is a calculated steering-geometry value based on trail and head tube angle. Also searched as flop.

Configuration	Size	Wheel flop	Source
Orca Aero geometry	51	17.1 mm	RideDNA-derived
Orca Aero geometry	53	17 mm	RideDNA-derived
Orca Aero geometry	55	16.5 mm	RideDNA-derived
Orca Aero geometry	57	16 mm	RideDNA-derived
Orca Aero geometry	49	19.6 mm	RideDNA-derived
Orca Aero geometry	60	16 mm	RideDNA-derived
Orca Aero geometry	47	21 mm	RideDNA-derived

Geometry

Available sizes: 51, 53, 55, 57, 49, 60, 47.

Orca Aero geometry

Jump to size: 47 · 49 · 51 · 53 · 55 · 57 · 60

Orca Aero geometry geometry by size
Size	Reach	Stack	ETT	HTA	STA	Trail	Wheelbase	Chainstay	BB drop	BB height	Front center	Fork offset	Head tube	Seat tube	Standover	Fork length	Wheel flop	Max tire
47	369.4 mm	489.1 mm	505 mm	70.8 °	74.5 °	—	963.8 mm	400.5 mm	—	262 mm	568.7 mm	48 mm	84 mm	459 mm	701.2 mm	368 mm	21 mm	—
49	375.1 mm	498.3 mm	518 mm	71.3 °	74 °	—	968.5 mm	400.5 mm	—	262 mm	573.4 mm	48 mm	92 mm	474 mm	712.5 mm	368 mm	19.6 mm	—
51	379.2 mm	515.6 mm	530 mm	72.2 °	73.7 °	—	970.6 mm	400.5 mm	—	262 mm	575.4 mm	48 mm	107 mm	499 mm	732.9 mm	368 mm	17.1 mm	—
53	385 mm	533.4 mm	543 mm	72.8 °	73.5 °	—	971.5 mm	400.5 mm	—	262 mm	576.3 mm	43 mm	122 mm	524 mm	753.5 mm	368 mm	17 mm	—
55	390.9 mm	554 mm	555 mm	73 °	73.5 °	—	982.9 mm	400.9 mm	—	264 mm	586.9 mm	43 mm	145 mm	545 mm	775.9 mm	368 mm	16.5 mm	—
57	398.3 mm	571.9 mm	571 mm	73.2 °	73.2 °	—	993.8 mm	400.9 mm	—	264 mm	597.8 mm	43 mm	163 mm	565 mm	794.1 mm	368 mm	16 mm	—
60	403.5 mm	597.8 mm	584 mm	73.2 °	73.2 °	—	1006.8 mm	400.9 mm	—	264 mm	610.7 mm	43 mm	190 mm	592 mm	819.9 mm	368 mm	16 mm	—

Length measurements are in millimeters; HTA and STA are in degrees. ETT means effective top tube.

Size-to-size changes

Differences are calculated from the recorded values; they are not fit recommendations.

Orca Aero geometry: 47 → 49 — Reach +5.7 mm, Stack +9.2 mm, ETT +13 mm, HTA +0.5 °, STA -0.5 °, Wheelbase +4.7 mm, Chainstay +0 mm, BB height +0 mm, Front center +4.7 mm, Fork offset +0 mm, Head tube +8 mm, Seat tube +15 mm, Standover +11.3 mm, Fork length +0 mm, Wheel flop -1.4 mm
Orca Aero geometry: 49 → 51 — Reach +4.1 mm, Stack +17.3 mm, ETT +12 mm, HTA +0.9 °, STA -0.3 °, Wheelbase +2.1 mm, Chainstay +0 mm, BB height +0 mm, Front center +2 mm, Fork offset +0 mm, Head tube +15 mm, Seat tube +25 mm, Standover +20.4 mm, Fork length +0 mm, Wheel flop -2.5 mm
Orca Aero geometry: 51 → 53 — Reach +5.8 mm, Stack +17.8 mm, ETT +13 mm, HTA +0.6 °, STA -0.2 °, Wheelbase +0.9 mm, Chainstay +0 mm, BB height +0 mm, Front center +0.9 mm, Fork offset -5 mm, Head tube +15 mm, Seat tube +25 mm, Standover +20.6 mm, Fork length +0 mm, Wheel flop -0.1 mm
Orca Aero geometry: 53 → 55 — Reach +5.9 mm, Stack +20.6 mm, ETT +12 mm, HTA +0.2 °, STA +0 °, Wheelbase +11.4 mm, Chainstay +0.4 mm, BB height +2 mm, Front center +10.6 mm, Fork offset +0 mm, Head tube +23 mm, Seat tube +21 mm, Standover +22.4 mm, Fork length +0 mm, Wheel flop -0.5 mm
Orca Aero geometry: 55 → 57 — Reach +7.4 mm, Stack +17.9 mm, ETT +16 mm, HTA +0.2 °, STA -0.3 °, Wheelbase +10.9 mm, Chainstay +0 mm, BB height +0 mm, Front center +10.9 mm, Fork offset +0 mm, Head tube +18 mm, Seat tube +20 mm, Standover +18.2 mm, Fork length +0 mm, Wheel flop -0.5 mm
Orca Aero geometry: 57 → 60 — Reach +5.2 mm, Stack +25.9 mm, ETT +13 mm, HTA +0 °, STA +0 °, Wheelbase +13 mm, Chainstay +0 mm, BB height +0 mm, Front center +12.9 mm, Fork offset +0 mm, Head tube +27 mm, Seat tube +27 mm, Standover +25.8 mm, Fork length +0 mm, Wheel flop +0 mm

RideDNA-derived values

These deterministic calculations use the recorded manufacturer inputs above. They are separate from manufacturer facts and are not fit recommendations.

Orca Aero geometry size 51 stack Reach Ratio: 1.36
Orca Aero geometry size 53 stack Reach Ratio: 1.39
Orca Aero geometry size 55 stack Reach Ratio: 1.42
Orca Aero geometry size 57 stack Reach Ratio: 1.44
Orca Aero geometry size 49 stack Reach Ratio: 1.33
Orca Aero geometry size 60 stack Reach Ratio: 1.48
Orca Aero geometry size 47 stack Reach Ratio: 1.32