Compare: 2023 TanTan Cycling (Seraph) TT-X38 Base 49 vs 2025 Colnago V5RS Base 45

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 Colnago V5RS

Stack	516mm	523mm +7mm
Reach	378mm	377mm -1mm
Stack to Reach Ratio	1.37:1	1.39:1
Seat Tube Length, C-T	490mm	455mm -35mm
Top Tube Length, Effective/Horizontal Center	521mm	—
Top Tube Length, Effective/Horizontal HT Top	—	514mm
Top Tube Slope	4.9deg	9.6deg +4.7deg
Head Tube Angle	71deg	71.5deg +0.5deg
Seat Tube Angle	74.5deg	75.3deg +0.8deg
Head Tube Length	115mm	112mm -3mm
Bottom Bracket Drop	70mm	74mm +4mm
Bottom Bracket Height	269mm	265mm -4mm
Chainstay Length	410mm	408mm -2mm
Chainstay Length Horizontal	404mm	401.2mm -2.8mm
Front-Center	583mm	581.5mm -1.5mm
Front-Center Horizontal	578.8mm	576.8mm -2mm
Wheelbase	982.8mm	978mm -4.8mm
Fork Offset/Rake	45mm	47mm +2mm
Fork Length (Axle-To-Crown)	—	377mm
Trail	69.1mm high	63.9mm -5.2mm mid/neutral
Mechanical Trail	65.4mm	60.6mm -4.8mm
Wheel Flop	21.3mm	19.2mm -2.1mm
Standover Height	—	714mm
Tire to Pedal Spindle	74mm 170 mm cranks	72.5mm -1.5mm 170 mm cranks
Pedal Spindle to Ground Clearance	99mm 170 mm cranks	95mm -4mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	28mm	28mm +0mm
Tire Outer Diameter	678mm	678mm +0mm
Bike Length with Tires	1660.8mm	1656mm -4.8mm
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.colnago.com/en/premium-bikes/v5rs-bike/technical-specifications
Brand	TanTan Cycling (Seraph)	Colnago
Bike	2023 TT-X38 Base	2025 V5RS Base
Size	49	45
Category	Performance Road	Performance Road