bike geometry

Orca 2026

Name: Orca 2026
Brand: Orbea

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

Orbea › Orca › Standard › Orca

Orca 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?

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 geometry	47	370 mm	RideDNA-derived
Orca geometry	49	375 mm	RideDNA-derived
Orca geometry	53	385 mm	RideDNA-derived
Orca geometry	57	398 mm	RideDNA-derived
Orca geometry	51	380 mm	RideDNA-derived
Orca geometry	55	391 mm	RideDNA-derived
Orca geometry	60	404 mm	RideDNA-derived

What is the stack of the Orca?

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 geometry	47	506 mm	RideDNA-derived
Orca geometry	49	515 mm	RideDNA-derived
Orca geometry	53	552 mm	RideDNA-derived
Orca geometry	57	590 mm	RideDNA-derived
Orca geometry	51	533 mm	RideDNA-derived
Orca geometry	55	572 mm	RideDNA-derived
Orca geometry	60	616 mm	RideDNA-derived

What is the effective top tube of the Orca?

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 geometry	47	510.3 mm	RideDNA-derived
Orca geometry	49	522.7 mm	RideDNA-derived
Orca geometry	53	548.5 mm	RideDNA-derived
Orca geometry	57	576.1 mm	RideDNA-derived
Orca geometry	51	535.9 mm	RideDNA-derived
Orca geometry	55	560.4 mm	RideDNA-derived
Orca geometry	60	590 mm	RideDNA-derived

What is the head tube angle of the Orca?

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 geometry	47	71 °	RideDNA-derived
Orca geometry	49	71.5 °	RideDNA-derived
Orca geometry	53	72.8 °	RideDNA-derived
Orca geometry	57	73.2 °	RideDNA-derived
Orca geometry	51	72.2 °	RideDNA-derived
Orca geometry	55	73 °	RideDNA-derived
Orca geometry	60	73.2 °	RideDNA-derived

What is the seat tube angle of the Orca?

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 geometry	47	74.5 °	RideDNA-derived
Orca geometry	49	74 °	RideDNA-derived
Orca geometry	53	73.5 °	RideDNA-derived
Orca geometry	57	73.2 °	RideDNA-derived
Orca geometry	51	73.7 °	RideDNA-derived
Orca geometry	55	73.5 °	RideDNA-derived
Orca geometry	60	73.2 °	RideDNA-derived

What is the wheelbase of the Orca?

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

Configuration	Size	Wheelbase	Source
Orca geometry	47	971.8 mm	RideDNA-derived
Orca geometry	49	975.5 mm	RideDNA-derived
Orca geometry	53	981.2 mm	RideDNA-derived
Orca geometry	57	1001.8 mm	RideDNA-derived
Orca geometry	51	980.1 mm	RideDNA-derived
Orca geometry	55	991.4 mm	RideDNA-derived
Orca geometry	60	1015.7 mm	RideDNA-derived

What is the chainstay length of the Orca?

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 geometry	47	401.6 mm	RideDNA-derived
Orca geometry	49	401.6 mm	RideDNA-derived
Orca geometry	53	402 mm	RideDNA-derived
Orca geometry	57	402 mm	RideDNA-derived
Orca geometry	51	401.6 mm	RideDNA-derived
Orca geometry	55	402 mm	RideDNA-derived
Orca geometry	60	402 mm	RideDNA-derived

What is the bottom bracket height of the Orca?

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 geometry	47	268 mm	RideDNA-derived
Orca geometry	49	268 mm	RideDNA-derived
Orca geometry	53	270 mm	RideDNA-derived
Orca geometry	57	270 mm	RideDNA-derived
Orca geometry	51	268 mm	RideDNA-derived
Orca geometry	55	270 mm	RideDNA-derived
Orca geometry	60	270 mm	RideDNA-derived

What is the front center of the Orca?

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 geometry	47	574.7 mm	RideDNA-derived
Orca geometry	49	578.4 mm	RideDNA-derived
Orca geometry	53	583.4 mm	RideDNA-derived
Orca geometry	57	604 mm	RideDNA-derived
Orca geometry	51	582.9 mm	RideDNA-derived
Orca geometry	55	593.5 mm	RideDNA-derived
Orca geometry	60	617.8 mm	RideDNA-derived

What is the fork offset of the Orca?

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 geometry	47	48 mm	RideDNA-derived
Orca geometry	49	48 mm	RideDNA-derived
Orca geometry	53	43 mm	RideDNA-derived
Orca geometry	57	43 mm	RideDNA-derived
Orca geometry	51	48 mm	RideDNA-derived
Orca geometry	55	43 mm	RideDNA-derived
Orca geometry	60	43 mm	RideDNA-derived

What is the head tube length of the Orca?

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 geometry	47	110.5 mm	RideDNA-derived
Orca geometry	49	118.2 mm	RideDNA-derived
Orca geometry	53	152.9 mm	RideDNA-derived
Orca geometry	57	191.2 mm	RideDNA-derived
Orca geometry	51	134.6 mm	RideDNA-derived
Orca geometry	55	173.1 mm	RideDNA-derived
Orca geometry	60	218.3 mm	RideDNA-derived

What is the seat tube length of the Orca?

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 geometry	47	440 mm	RideDNA-derived
Orca geometry	49	460 mm	RideDNA-derived
Orca geometry	53	500 mm	RideDNA-derived
Orca geometry	57	540 mm	RideDNA-derived
Orca geometry	51	480 mm	RideDNA-derived
Orca geometry	55	520 mm	RideDNA-derived
Orca geometry	60	570 mm	RideDNA-derived

What is the standover height of the Orca?

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 geometry	47	706.5 mm	RideDNA-derived
Orca geometry	49	720.2 mm	RideDNA-derived
Orca geometry	53	759.3 mm	RideDNA-derived
Orca geometry	57	797.2 mm	RideDNA-derived
Orca geometry	51	738.5 mm	RideDNA-derived
Orca geometry	55	778.9 mm	RideDNA-derived
Orca geometry	60	824.5 mm	RideDNA-derived

What is the fork length of the Orca?

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 geometry	47	365 mm	RideDNA-derived
Orca geometry	49	365 mm	RideDNA-derived
Orca geometry	53	365 mm	RideDNA-derived
Orca geometry	57	365 mm	RideDNA-derived
Orca geometry	51	365 mm	RideDNA-derived
Orca geometry	55	365 mm	RideDNA-derived
Orca geometry	60	365 mm	RideDNA-derived

What is the wheel flop of the Orca?

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 geometry	47	20.4 mm	RideDNA-derived
Orca geometry	49	19 mm	RideDNA-derived
Orca geometry	53	17 mm	RideDNA-derived
Orca geometry	57	16 mm	RideDNA-derived
Orca geometry	51	17.1 mm	RideDNA-derived
Orca geometry	55	16.5 mm	RideDNA-derived
Orca geometry	60	16 mm	RideDNA-derived

Geometry

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

Orca geometry

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

Orca 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	370 mm	506 mm	510.3 mm	71 °	74.5 °	—	971.8 mm	401.6 mm	—	268 mm	574.7 mm	48 mm	110.5 mm	440 mm	706.5 mm	365 mm	20.4 mm	—
49	375 mm	515 mm	522.7 mm	71.5 °	74 °	—	975.5 mm	401.6 mm	—	268 mm	578.4 mm	48 mm	118.2 mm	460 mm	720.2 mm	365 mm	19 mm	—
51	380 mm	533 mm	535.9 mm	72.2 °	73.7 °	—	980.1 mm	401.6 mm	—	268 mm	582.9 mm	48 mm	134.6 mm	480 mm	738.5 mm	365 mm	17.1 mm	—
53	385 mm	552 mm	548.5 mm	72.8 °	73.5 °	—	981.2 mm	402 mm	—	270 mm	583.4 mm	43 mm	152.9 mm	500 mm	759.3 mm	365 mm	17 mm	—
55	391 mm	572 mm	560.4 mm	73 °	73.5 °	—	991.4 mm	402 mm	—	270 mm	593.5 mm	43 mm	173.1 mm	520 mm	778.9 mm	365 mm	16.5 mm	—
57	398 mm	590 mm	576.1 mm	73.2 °	73.2 °	—	1001.8 mm	402 mm	—	270 mm	604 mm	43 mm	191.2 mm	540 mm	797.2 mm	365 mm	16 mm	—
60	404 mm	616 mm	590 mm	73.2 °	73.2 °	—	1015.7 mm	402 mm	—	270 mm	617.8 mm	43 mm	218.3 mm	570 mm	824.5 mm	365 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 geometry: 47 → 49 — Reach +5 mm, Stack +9 mm, ETT +12.4 mm, HTA +0.5 °, STA -0.5 °, Wheelbase +3.7 mm, Chainstay +0 mm, BB height +0 mm, Front center +3.7 mm, Fork offset +0 mm, Head tube +7.7 mm, Seat tube +20 mm, Standover +13.7 mm, Fork length +0 mm, Wheel flop -1.4 mm
Orca geometry: 49 → 51 — Reach +5 mm, Stack +18 mm, ETT +13.2 mm, HTA +0.7 °, STA -0.3 °, Wheelbase +4.6 mm, Chainstay +0 mm, BB height +0 mm, Front center +4.5 mm, Fork offset +0 mm, Head tube +16.4 mm, Seat tube +20 mm, Standover +18.3 mm, Fork length +0 mm, Wheel flop -1.9 mm
Orca geometry: 51 → 53 — Reach +5 mm, Stack +19 mm, ETT +12.6 mm, HTA +0.6 °, STA -0.2 °, Wheelbase +1.1 mm, Chainstay +0.4 mm, BB height +2 mm, Front center +0.5 mm, Fork offset -5 mm, Head tube +18.3 mm, Seat tube +20 mm, Standover +20.8 mm, Fork length +0 mm, Wheel flop -0.1 mm
Orca geometry: 53 → 55 — Reach +6 mm, Stack +20 mm, ETT +11.9 mm, HTA +0.2 °, STA +0 °, Wheelbase +10.2 mm, Chainstay +0 mm, BB height +0 mm, Front center +10.1 mm, Fork offset +0 mm, Head tube +20.2 mm, Seat tube +20 mm, Standover +19.6 mm, Fork length +0 mm, Wheel flop -0.5 mm
Orca geometry: 55 → 57 — Reach +7 mm, Stack +18 mm, ETT +15.7 mm, HTA +0.2 °, STA -0.3 °, Wheelbase +10.4 mm, Chainstay +0 mm, BB height +0 mm, Front center +10.5 mm, Fork offset +0 mm, Head tube +18.1 mm, Seat tube +20 mm, Standover +18.3 mm, Fork length +0 mm, Wheel flop -0.5 mm
Orca geometry: 57 → 60 — Reach +6 mm, Stack +26 mm, ETT +13.9 mm, HTA +0 °, STA +0 °, Wheelbase +13.9 mm, Chainstay +0 mm, BB height +0 mm, Front center +13.8 mm, Fork offset +0 mm, Head tube +27.1 mm, Seat tube +30 mm, Standover +27.3 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 geometry size 47 stack Reach Ratio: 1.37
Orca geometry size 49 stack Reach Ratio: 1.37
Orca geometry size 53 stack Reach Ratio: 1.43
Orca geometry size 57 stack Reach Ratio: 1.48
Orca geometry size 51 stack Reach Ratio: 1.4
Orca geometry size 55 stack Reach Ratio: 1.46
Orca geometry size 60 stack Reach Ratio: 1.52