Compare: 2026 Cervelo Cycles S5 Base 48 vs 2023 TanTan Cycling (Seraph) TT-X34 Base XXX / 47 - Bike Insights

Insights

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Cervelo Cycles S5

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of TanTan Cycling (Seraph) TT-X34

Geometry

Stack	496mm	508mm +12mm
Reach	367mm	372mm +5mm
Stack to Reach Ratio	1.35:1	1.37:1
Seat Tube Length, C-T	—	424mm
Top Tube Length, Effective/Horizontal HT Top	—	512mm
Top Tube Length, Effective/Horizontal Unknown	520mm	—
Top Tube Slope	—	11.6deg
Head Tube Angle	71deg	71.3deg +0.3deg
Seat Tube Angle	73deg	74.6deg +1.6deg
Head Tube Length	69mm	100mm +31mm
Bottom Bracket Drop	72.5mm	72mm -0.5mm
Bottom Bracket Height	266.5mm	269mm +2.5mm
Chainstay Length	405mm	410mm +5mm
Chainstay Length Horizontal	398.5mm	403.6mm +5.1mm
Front-Center	579mm	571mm -8mm
Front-Center Horizontal	574.5mm	566.4mm -8.1mm
Wheelbase	973mm	970.1mm -2.9mm
Fork Offset/Rake	58mm	45mm -13mm
Trail	55.4mm mid/neutral	67.9mm +12.5mm high
Mechanical Trail	52.4mm	64.3mm +11.9mm
Wheel Flop	17.1mm	20.6mm +3.5mm
Standover Height	707.5mm	—
Tire to Pedal Spindle	70mm 170 mm cranks	60mm -10mm 170 mm cranks
Pedal Spindle to Ground Clearance	96.5mm 170 mm cranks	99mm +2.5mm 170 mm cranks

Build

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	28mm	30mm +2mm
Tire Outer Diameter	678mm	682mm +4mm
Bike Length with Tires	1651mm	1652.1mm +1.1mm
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

Meta

Actions	Collection I've Ridden	Collection I've Ridden
Source	https://www.cervelo.com/en-US/bikes/s5	http://tantancycling.com/index.php?_m=mod_product&_a=view&p_id=1043
Brand	Cervelo Cycles	TanTan Cycling (Seraph)
Bike	2026 S5 Base	2023 TT-X34 Base
Size	48	XXX / 47
Category	Performance Road	Performance Road