Compare: 2026 Quick Pro Blade Base XL/558 vs 2025 TanTan Cycling (Seraph) TT-X65 Base 56

Insights

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of TanTan Cycling (Seraph) TT-X65

Stack	585mm	581mm -4mm
Reach	400mm	397mm -3mm
Stack to Reach Ratio	1.46:1	1.46:1
Seat Tube Length, C-T	—	560mm
Seat Tube Length, Unknown	536mm	—
Top Tube Length, Effective/Horizontal Unknown	559mm	569mm +10mm
Top Tube Slope	7.3deg	4.5deg -2.8deg
Head Tube Angle	72.5deg	73deg +0.5deg
Seat Tube Angle	73.5deg	73.5deg +0deg
Head Tube Length	157mm	174mm +17mm
Bottom Bracket Drop	72mm	73mm +1mm
Bottom Bracket Height	267mm	270mm +3mm
Chainstay Length	410mm	408mm -2mm
Chainstay Length Horizontal	403.6mm	401.4mm -2.2mm
Front-Center	598.7mm	604mm +5.3mm
Front-Center Horizontal	594.4mm	599.6mm +5.2mm
Wheelbase	998mm	1001mm +3mm
Fork Offset/Rake	45mm	45mm +0mm
Fork Length, Unknown	375mm	—
Trail	59.7mm mid/neutral	57.8mm -1.9mm mid/neutral
Mechanical Trail	56.9mm	55.3mm -1.6mm
Wheel Flop	17.1mm	16.2mm -0.9mm
Standover Height	806mm	830mm +24mm
Tire to Pedal Spindle	89.7mm 170 mm cranks	91mm +1.3mm 170 mm cranks
Pedal Spindle to Ground Clearance	97mm 170 mm cranks	100mm +3mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	28mm	32mm +4mm
Tire Width Max	—	32mm
Tire Outer Diameter	678mm	686mm +8mm
Bike Length with Tires	1676mm	1687mm +11mm
Crank Length	—	170mm
Handlebar Width	—	38mm
Stem Length	—	100mm
Stem Angle	—	-6deg
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