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

Insights

Average stack and reach vs trend of performance road bikes

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

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Orbea Orca Aero

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

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	28mm	25mm -3mm
Tire Outer Diameter	678mm	672mm -6mm
Bike Length with Tires	1655.7mm	1638.2mm -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	N/A	https://www.orbea.com/gb-en/bicicletas/carretera/orca-aero/cat/orca-aero-m31eltd-pwr-2023#geometry-and-sizes
Brand	TanTan Cycling (Seraph)	Orbea
Bike	2023 TT-X38 Base	2023 Orca Aero M31 eLTD
Size	47	47
Category	Performance Road	Performance Road