Compare: 2026 Cervelo Cycles S5 Base 61 vs 2023 TanTan Cycling (Seraph) TT-X34 Base XXL / 60

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

Stack	608mm	604mm -4mm
Reach	409mm	405mm -4mm
Stack to Reach Ratio	1.49:1	1.49:1
Seat Tube Length, C-T	—	573mm
Top Tube Length, Effective/Horizontal HT Top	—	586mm
Top Tube Length, Effective/Horizontal Unknown	595mm	—
Top Tube Slope	—	5.5deg
Head Tube Angle	73.5deg	74deg +0.5deg
Seat Tube Angle	73deg	73.3deg +0.3deg
Head Tube Length	173mm	191mm +18mm
Bottom Bracket Drop	67.5mm	72mm +4.5mm
Bottom Bracket Height	271.5mm	269mm -2.5mm
Chainstay Length	405mm	410mm +5mm
Chainstay Length Horizontal	399.3mm	403.6mm +4.3mm
Front-Center	617mm	608mm -9mm
Front-Center Horizontal	613.7mm	603.7mm -10mm
Wheelbase	1013mm	1007.4mm -5.6mm
Fork Offset/Rake	43.5mm	45mm +1.5mm
Trail	55.1mm mid/neutral	51mm -4.1mm mid/neutral
Mechanical Trail	52.8mm	49mm -3.8mm
Wheel Flop	15mm	13.5mm -1.5mm
Standover Height	822mm	—
Tire to Pedal Spindle	108mm 170 mm cranks	97mm -11mm 170 mm cranks
Pedal Spindle to Ground Clearance	101.5mm 170 mm cranks	99mm -2.5mm 170 mm cranks

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	1691mm	1689.4mm -1.6mm
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.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	61	XXL / 60
Category	Performance Road	Performance Road