Compare: 2023 Orbea Orca Aero M31 eLTD 47 vs 2023 TanTan Cycling (Seraph) TT-X38 Base 47

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	496mm	509mm +13mm
Reach	370mm	370mm +0mm
Stack to Reach Ratio	1.34:1	1.38:1
Seat Tube Length, C-T	459mm	470mm +11mm
Top Tube Length, Effective/Horizontal Center	507.6mm	511mm +3.4mm
Top Tube Slope	6.2deg	6.5deg +0.3deg
Head Tube Angle	71deg	70.5deg -0.5deg
Seat Tube Angle	74.5deg	74.5deg +0deg
Head Tube Length	93.1mm	110mm +16.9mm
Bottom Bracket Drop	76mm	70mm -6mm
Bottom Bracket Height	260mm	269mm +9mm
Chainstay Length	408mm	410mm +2mm
Chainstay Length Horizontal	400.9mm	404mm +3.1mm
Front-Center	570.4mm	578mm +7.6mm
Front-Center Horizontal	565.3mm	573.8mm +8.5mm
Wheelbase	966.2mm	977.7mm +11.5mm
Fork Offset/Rake	48mm	45mm -3mm
Fork Length (Axle-To-Crown)	370mm	—
Trail	65mm mid/neutral	72.3mm +7.3mm high
Mechanical Trail	61.4mm	68.2mm +6.8mm
Wheel Flop	20mm	22.8mm +2.8mm
Standover Height	717mm	—
Tire to Pedal Spindle	64.4mm 170 mm cranks	69mm +4.6mm 170 mm cranks
Pedal Spindle to Ground Clearance	90mm 170 mm cranks	99mm +9mm 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	1638.2mm	1655.7mm +17.5mm
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	47	47
Category	Performance Road	Performance Road