Compare: 2023 Orbea Orca Aero M31 eLTD 60 vs 2023 TanTan Cycling (Seraph) TT-X38 Base 58

Insights

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Orbea Orca Aero

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of TanTan Cycling (Seraph) TT-X38

Stack	606mm	595mm -11mm
Reach	404mm	400mm -4mm
Stack to Reach Ratio	1.5:1	1.49:1
Seat Tube Length, C-T	589mm	580mm -9mm
Top Tube Length, Effective/Horizontal Center	587mm	582mm -5mm
Top Tube Slope	4.2deg	4.1deg -0.1deg
Head Tube Angle	73.2deg	73.3deg +0.1deg
Seat Tube Angle	73.2deg	73deg -0.2deg
Head Tube Length	200.4mm	190mm -10.4mm
Bottom Bracket Drop	74mm	70mm -4mm
Bottom Bracket Height	262mm	269mm +7mm
Chainstay Length	408mm	410mm +2mm
Chainstay Length Horizontal	401.2mm	404mm +2.8mm
Front-Center	614mm	609mm -5mm
Front-Center Horizontal	609.6mm	605mm -4.6mm
Wheelbase	1010.8mm	1008.9mm -1.9mm
Fork Offset/Rake	43mm	45mm +2mm
Fork Length (Axle-To-Crown)	370mm	—
Trail	56.5mm mid/neutral	54.7mm -1.8mm mid/neutral
Mechanical Trail	54.1mm	52.4mm -1.7mm
Wheel Flop	15.6mm	15.1mm -0.5mm
Standover Height	835.8mm	—
Tire to Pedal Spindle	108mm 170 mm cranks	100mm -8mm 170 mm cranks
Pedal Spindle to Ground Clearance	92mm 170 mm cranks	99mm +7mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	25mm	28mm +3mm
Tire Outer Diameter	672mm	678mm +6mm
Bike Length with Tires	1682.8mm	1686.9mm +4.1mm
Suspension Type	Rigid, non-suspension corrected	Rigid, non-suspension corrected
Bar Type	Drop Bar	Drop Bar
Frame Material	Carbon/Composite	Carbon/Composite
Fork Material	Carbon/Composite	Carbon/Composite
Brake Type	Disc	Disc

Actions	Collection I've Ridden	Collection I've Ridden
Source	https://www.orbea.com/gb-en/bicicletas/carretera/orca-aero/cat/orca-aero-m31eltd-pwr-2023#geometry-and-sizes	N/A
Brand	Orbea	TanTan Cycling (Seraph)
Bike	2023 Orca Aero M31 eLTD	2023 TT-X38 Base
Size	60	58
Category	Performance Road	Performance Road