Compare: 2023 TanTan Cycling (Seraph) TT-X34 Base XS / 50 vs 2025 Trek Bikes Madone SL6 Gen 8 S

Insights

Average stack and reach vs trend of performance road bikes

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

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Trek Bikes Madone

Stack	521mm	530mm +9mm
Reach	377mm	378mm +1mm
Stack to Reach Ratio	1.38:1	1.4:1
Seat Tube Length, C-T	453mm	—
Seat Tube Length, Effective Unknown	—	440mm
Top Tube Length, Effective/Horizontal HT Top	521mm	—
Top Tube Length, Effective/Horizontal Unknown	—	532mm
Top Tube Slope	9.6deg	12.1deg +2.5deg
Head Tube Angle	72.1deg	72.2deg +0.1deg
Seat Tube Angle	74.6deg	73.8deg -0.8deg
Head Tube Length	111mm	121mm +10mm
Bottom Bracket Drop	72mm	72mm +0mm
Bottom Bracket Height	269mm	267mm -2mm
Chainstay Length	410mm	410mm +0mm
Chainstay Length Horizontal	403.6mm	403.6mm +0mm
Front-Center	574mm	267mm -307mm
Front-Center Horizontal	569.5mm	572.4mm +2.9mm
Wheelbase	973.1mm	976mm +2.9mm
Fork Offset/Rake	45mm	45mm +0mm
Trail	62.9mm mid/neutral	61.6mm -1.3mm mid/neutral
Mechanical Trail	59.8mm	58.6mm -1.2mm
Wheel Flop	18.4mm	17.9mm -0.5mm
Standover Height	—	734mm
Tire to Pedal Spindle	63mm 170 mm cranks	-237mm -300mm 165 mm cranks
Pedal Spindle to Ground Clearance	99mm 170 mm cranks	102mm +3mm 165 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	30mm	28mm -2mm
Tire Width Max	30mm	32mm +2mm
Tire Outer Diameter	682mm	678mm -4mm
Bike Length with Tires	1655.1mm	1654mm -1.1mm
Crank Length	—	165mm
Stem Length	—	90mm
Stem Angle	—	-7deg
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