Compare: 2023 TanTan Cycling (Seraph) TT-X38 Base 58 vs 2025 Colnago V5RS Base 55

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	595mm	593mm -2mm
Reach	400mm	404mm +4mm
Stack to Reach Ratio	1.49:1	1.47:1
Seat Tube Length, C-T	580mm	550mm -30mm
Top Tube Length, Effective/Horizontal Center	582mm	—
Top Tube Length, Effective/Horizontal HT Top	—	578mm
Top Tube Slope	4.1deg	6.7deg +2.6deg
Head Tube Angle	73.3deg	73deg -0.3deg
Seat Tube Angle	73deg	73.5deg +0.5deg
Head Tube Length	190mm	181mm -9mm
Bottom Bracket Drop	70mm	72mm +2mm
Bottom Bracket Height	269mm	267mm -2mm
Chainstay Length	410mm	408mm -2mm
Chainstay Length Horizontal	404mm	401.6mm -2.4mm
Front-Center	609mm	612.5mm +3.5mm
Front-Center Horizontal	605mm	608.3mm +3.3mm
Wheelbase	1008.9mm	1009.9mm +1mm
Fork Offset/Rake	45mm	43mm -2mm
Fork Length (Axle-To-Crown)	—	377mm
Trail	54.7mm mid/neutral	58.7mm +4mm mid/neutral
Mechanical Trail	52.4mm	56.1mm +3.7mm
Wheel Flop	15.1mm	16.4mm +1.3mm
Standover Height	—	801mm
Tire to Pedal Spindle	100mm 170 mm cranks	103.5mm +3.5mm 170 mm cranks
Pedal Spindle to Ground Clearance	99mm 170 mm cranks	97mm -2mm 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	1686.9mm	1687.9mm +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	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	58	55
Category	Performance Road	Performance Road