Compare: 2022 TanTan Cycling (Seraph) FM639 Base 52 vs 2025 Cervelo Cycles Soloist Frameset 51

Insights

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of TanTan Cycling (Seraph) FM639

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Cervelo Cycles Soloist

Stack	528mm	515mm -13mm
Reach	375mm	374mm -1mm
Stack to Reach Ratio	1.41:1	1.38:1
Seat Tube Length, C-T	—	483mm
Top Tube Length, Effective/Horizontal Center	—	532mm
Top Tube Length, Effective/Horizontal Unknown	536mm	—
Top Tube Slope	—	5.9deg
Head Tube Angle	72deg	72deg +0deg
Seat Tube Angle	73deg	73deg +0deg
Head Tube Length	122mm	106mm -16mm
Bottom Bracket Drop	72mm	74.5mm +2.5mm
Bottom Bracket Height	267mm	264.5mm -2.5mm
Chainstay Length	410mm	410mm +0mm
Chainstay Length Max	—	410mm
Chainstay Length Horizontal	403.6mm	403.2mm -0.4mm
Chainstay Length Horizontal Max	—	403.2mm
Front-Center	575mm	576mm +1mm
Front-Center Horizontal	570.4mm	571.2mm +0.8mm
Wheelbase	974mm	974.3mm +0.3mm
Wheelbase Max	—	974mm
Fork Offset/Rake	45mm	51.5mm +6.5mm
Trail	62.8mm mid/neutral	56mm -6.8mm mid/neutral
Mechanical Trail	59.8mm	53.3mm -6.5mm
Wheel Flop	18.5mm	16.5mm -2mm
Standover Height	730mm	748mm +18mm
Tire to Pedal Spindle	66mm 170 mm cranks	67mm +1mm 170 mm cranks
Pedal Spindle to Ground Clearance	97mm 170 mm cranks	94.5mm -2.5mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	28mm	28mm +0mm
Tire Width Max	28mm	—
Tire Outer Diameter	678mm	678mm +0mm
Bike Length with Tires	1652mm	1652.3mm +0.3mm
Suspension Type	Rigid, non-suspension corrected	Rigid, non-suspension corrected
Bar Type	Drop Bar	Drop Bar
Frame Material	Unknown	Carbon/Composite
Fork Material	Unknown	Carbon/Composite
Brake Type	Unknown	Disc