Compare: 2023 TanTan Cycling (Seraph) FM025 Base L vs 2025 TWITTER Bikes T8 PRO 52

Insights

Somewhat aggressive stack and reach vs trend of performance road bikes

Design deviates from other sizes of TWITTER Bikes T8

Stack	540mm	545mm +5mm
Reach	391mm	395mm +4mm
Stack to Reach Ratio	1.38:1	1.38:1
Seat Tube Length, C-T	520mm	—
Seat Tube Length, Unknown	—	520mm
Seat Tube Length, Effective Center	540mm	—
Top Tube Length, Effective/Horizontal Center	556mm	—
Top Tube Length, Effective/Horizontal Unknown	163.5mm	561.6mm +398.1mm
Top Tube Slope	4.4deg	5deg +0.6deg
Head Tube Angle	72.7deg	73deg +0.3deg
Seat Tube Angle	73.5deg	73deg -0.5deg
Head Tube Length	140mm	140mm +0mm
Bottom Bracket Drop	69mm	67mm -2mm
Bottom Bracket Height	272mm	272mm +0mm
Chainstay Length	410mm	410mm +0mm
Chainstay Length Horizontal	404.2mm	404.5mm +0.3mm
Front-Center	596mm	592mm -4mm
Front-Center Horizontal	591.9mm	588.2mm -3.7mm
Wheelbase	996mm	992.7mm -3.3mm
Fork Offset/Rake	45mm	45mm +0mm
Fork Length (Axle-To-Crown)	375mm	—
Trail	59.1mm mid/neutral	56.6mm -2.5mm mid/neutral
Mechanical Trail	56.4mm	54.1mm -2.3mm
Wheel Flop	16.8mm	15.8mm -1mm
Standover Height	790mm	—
Tire to Pedal Spindle	85mm 170 mm cranks	83mm -2mm 170 mm cranks
Pedal Spindle to Ground Clearance	102mm 170 mm cranks	102mm +0mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	30mm	28mm -2mm
Tire Width Max	32mm	—
Tire Outer Diameter	682mm	678mm -4mm
Bike Length with Tires	1678mm	1670.7mm -7.3mm
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