Compare: 2023 TanTan Cycling (Seraph) TT-X68 Base 52 vs 2026 TWITTER Bikes X7 Base 49

Insights

Somewhat aggressive stack and reach vs trend of endurance road bikes

Design deviates from other sizes of TanTan Cycling (Seraph) TT-X68

Somewhat upright stack and reach vs trend of performance road bikes

Design deviates from other sizes of TWITTER Bikes X7

Bar type unusual for category

This: Aero Bar
Category: Drop Bar

Stack	527mm	532mm +5mm
Reach	380mm	365mm -15mm
Stack to Reach Ratio	1.39:1	1.46:1
Seat Tube Length, Unknown	456mm	458mm +2mm
Top Tube Length, Effective/Horizontal Center	531mm	—
Top Tube Length, Effective/Horizontal Unknown	—	532mm
Top Tube Slope	9.9deg	10.6deg +0.7deg
Head Tube Angle	72.5deg	72.2deg -0.3deg
Seat Tube Angle	74deg	74deg +0deg
Head Tube Length	120mm	113mm -7mm
Bottom Bracket Drop	74mm	72mm -2mm
Bottom Bracket Height	269mm	269mm +0mm
Chainstay Length	410mm	410mm +0mm
Chainstay Length Horizontal	403.3mm	403.6mm +0.3mm
Front-Center	577mm	578mm +1mm
Front-Center Horizontal	571.7mm	573.4mm +1.7mm
Wheelbase	975mm	977mm +2mm
Fork Offset/Rake	47mm	44mm -3mm
Fork Length (Axle-To-Crown)	370mm	—
Fork Length, Unknown	—	367mm
Trail	58.9mm mid/neutral	63.3mm +4.4mm mid/neutral
Mechanical Trail	56.1mm	60.2mm +4.1mm
Wheel Flop	16.9mm	18.4mm +1.5mm
Standover Height	745mm	—
Tire to Pedal Spindle	64mm 170 mm cranks	67mm +3mm 170 mm cranks
Pedal Spindle to Ground Clearance	99mm 170 mm cranks	99mm +0mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	32mm	30mm -2mm
Tire Width Max	32mm	—
Tire Outer Diameter	686mm	682mm -4mm
Bike Length with Tires	1661mm	1659mm -2mm
Crank Length	170mm	—
Suspension Type	Rigid, non-suspension corrected	Rigid, non-suspension corrected
Bar Type	Drop Bar	Aero Bar
Frame Material	Carbon/Composite	Carbon/Composite
Fork Material	Carbon/Composite	Carbon/Composite
Brake Type	Disc	Disc