Compare: 2026 Merida Bikes Reacto 8000 S vs 2023 TanTan Cycling (Seraph) TT-X38 Base 54

Insights

Somewhat aggressive stack and reach vs trend of performance road bikes

Design deviates from other sizes of Merida Bikes Reacto

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of TanTan Cycling (Seraph) TT-X38

Stack	542mm	554mm +12mm
Reach	390mm	388mm -2mm
Stack to Reach Ratio	1.39:1	1.43:1
Seat Tube Length, C-T	520mm	540mm +20mm
Top Tube Length, Effective/Horizontal Center	—	551mm
Top Tube Length, Effective/Horizontal HT Top	545mm	—
Top Tube Slope	4.5deg	3.8deg -0.7deg
Head Tube Angle	72.5deg	72.5deg +0deg
Seat Tube Angle	74deg	73.6deg -0.4deg
Head Tube Length	128mm	150mm +22mm
Bottom Bracket Drop	66mm	70mm +4mm
Bottom Bracket Height	273mm	269mm -4mm
Chainstay Length	410mm	410mm +0mm
Chainstay Length Horizontal	404.7mm	404mm -0.7mm
Front-Center	591mm	592mm +1mm
Front-Center Horizontal	587.4mm	587.9mm +0.5mm
Wheelbase	992mm	991.8mm -0.2mm
Fork Offset/Rake	45mm	45mm +0mm
Fork Length, Unknown	385mm	—
Trail	59.7mm mid/neutral	59.7mm +0mm mid/neutral
Mechanical Trail	56.9mm	56.9mm +0mm
Wheel Flop	17.1mm	17.1mm +0mm
Standover Height	792mm	—
Tire to Pedal Spindle	82mm 170 mm cranks	83mm +1mm 170 mm cranks
Pedal Spindle to Ground Clearance	103mm 170 mm cranks	99mm -4mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	28mm	28mm +0mm
Tire Outer Diameter	678mm	678mm +0mm
Bike Length with Tires	1670mm	1669.8mm -0.2mm
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.merida-bikes.com/en-gb/bike/5930/reacto-8000	N/A
Brand	Merida Bikes	TanTan Cycling (Seraph)
Bike	2026 Reacto 8000	2023 TT-X38 Base
Size	S	54
Category	Performance Road	Performance Road