Compare: 2024 TWITTER Bikes Gravel v1 Base 540 vs 2025 Van Rysel EDR AF XL

Insights

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

Design deviates from other sizes of TWITTER Bikes Gravel v1

Somewhat upright stack and reach vs trend of endurance road bikes

Design deviates from other sizes of Van Rysel EDR

Stack	610.5mm	629mm +18.5mm
Reach	407.3mm	387mm -20.3mm
Stack to Reach Ratio	1.5:1	1.63:1
Seat Tube Length, C-T	540mm	530mm -10mm
Top Tube Length, Effective/Horizontal Center	593.9mm	580mm -13.9mm
Top Tube Slope	9.5deg	12.7deg +3.2deg
Head Tube Angle	73.5deg	73deg -0.5deg
Seat Tube Angle	73deg	73deg +0deg
Head Tube Length	190mm	215mm +25mm
Bottom Bracket Drop	70mm	67mm -3mm
Bottom Bracket Height	281mm	276mm -5mm
Chainstay Length	420mm	425mm +5mm
Chainstay Length Horizontal	414.1mm	419.7mm +5.6mm
Front-Center	629.7mm	610mm -19.7mm
Front-Center Horizontal	624.9mm	606.3mm -18.6mm
Wheelbase	1039mm	1026mm -13mm
Fork Offset/Rake	55mm	45mm -10mm
Fork Length (On-Axis)	—	384mm
Fork Length, Unknown	390mm	—
Trail	46.6mm mid/neutral	57.8mm +11.2mm mid/neutral
Mechanical Trail	44.7mm	55.3mm +10.6mm
Wheel Flop	12.7mm	16.2mm +3.5mm
Tire to Pedal Spindle	108.7mm 170 mm cranks	92mm -16.7mm 175 mm cranks
Pedal Spindle to Ground Clearance	111mm 170 mm cranks	101mm -10mm 175 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	40mm	32mm -8mm
Tire Width Max	—	38mm
Tire Outer Diameter	702mm	686mm -16mm
Bike Length with Tires	1741mm	1712mm -29mm
Crank Length	—	175mm
Handlebar Width	—	440mm
Stem Length	—	120mm
Stem Angle	—	7deg
Suspension Type	Rigid, non-suspension corrected	Rigid, non-suspension corrected
Bar Type	Drop Bar	Drop Bar
Frame Material	Carbon/Composite	Aluminum
Fork Material	Carbon/Composite	Carbon/Composite
Brake Type	Disc	Disc