Compare: 2026 TanTan Cycling (Seraph) GR257 Base 510 vs 2025 SCOTT Sports Addict Gravel 10 S/52

Insights

Somewhat upright stack and reach vs trend of progressive gravel bikes

Design deviates from other sizes of TanTan Cycling (Seraph) GR257

Somewhat aggressive stack and reach vs trend of all-road/gravel bikes

Design deviates from other sizes of SCOTT Sports Addict Gravel

Stack	540mm	544.4mm +4.4mm
Reach	369mm	378.4mm +9.4mm
Stack to Reach Ratio	1.46:1	1.44:1
Seat Tube Length, C-T	—	507mm
Seat Tube Length, C-TTT	488mm	—
Top Tube Length, Effective/Horizontal Center	521mm	—
Top Tube Length, Effective/Horizontal HT Top	—	534.5mm
Top Tube Slope	5.7deg	6.3deg +0.6deg
Head Tube Angle	71deg	70deg -1deg
Seat Tube Angle	74.3deg	74deg -0.3deg
Head Tube Length	108mm	122mm +14mm
Bottom Bracket Drop	72mm	73mm +1mm
Bottom Bracket Height	289mm	283mm -6mm
Chainstay Length	435mm	425mm -10mm
Chainstay Length Horizontal	429mm	418.7mm -10.3mm
Front-Center	593.4mm	608.6mm +15.2mm
Front-Center Horizontal	589mm	604.2mm +15.2mm
Wheelbase	1018mm	1022.9mm +4.9mm
Fork Offset/Rake	55mm	51mm -4mm
Fork Length, Unknown	405mm	—
Trail	66.1mm high	75.3mm +9.2mm high
Mechanical Trail	62.5mm	70.8mm +8.3mm
Wheel Flop	20.4mm	24.2mm +3.8mm
Standover Height	—	786mm
Tire to Pedal Spindle	62.4mm 170 mm cranks	82.6mm +20.2mm 170 mm cranks
Pedal Spindle to Ground Clearance	119mm 170 mm cranks	113mm -6mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	50mm	45mm -5mm
Tire Width Max	57mm	—
Tire Outer Diameter	722mm	712mm -10mm
Bike Length with Tires	1740mm	1734.9mm -5.1mm
Stem Length	—	93mm
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