Compare: 2023 Ridley Bikes Kanzo A GRX400/600 L vs 2025 ASSISTING FORCE AF01 Base L

Insights

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

Design deviates from other sizes of Ridley Bikes Kanzo A

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

Design deviates from other sizes of ASSISTING FORCE AF01

Stack	611mm	601mm -10mm
Reach	392mm	395mm +3mm
Stack to Reach Ratio	1.56:1	1.52:1
Seat Tube Length, C-T	570mm	—
Seat Tube Length, Unknown	—	478mm
Top Tube Length, Effective/Horizontal Unknown	585mm	573mm -12mm
Top Tube Length, Actual C-C	865mm	—
Top Tube Slope	6.8deg	15.1deg +8.3deg
Head Tube Angle	71deg	71deg +0deg
Seat Tube Angle	72.5deg	73.5deg +1deg
Head Tube Length	188mm	178mm -10mm
Bottom Bracket Drop	70mm	76mm +6mm
Bottom Bracket Height	279mm	277mm -2mm
Chainstay Length	430mm	425mm -5mm
Chainstay Length Horizontal	424.3mm	418.2mm -6.1mm
Front-Center	635.6mm	638mm +2.4mm
Front-Center Horizontal	631.7mm	633.9mm +2.2mm
Wheelbase	1056mm	1052mm -4mm
Fork Offset/Rake	50.5mm	55mm +4.5mm
Fork Length, Unknown	—	395mm
Trail	66.7mm high	63.4mm -3.3mm mid/neutral
Mechanical Trail	63.1mm	59.9mm -3.2mm
Wheel Flop	20.5mm	19.5mm -1mm
Standover Height	860mm	—
Tire to Pedal Spindle	116.6mm 170 mm cranks	115mm -1.6mm 170 mm cranks
Pedal Spindle to Ground Clearance	109mm 170 mm cranks	107mm -2mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	38mm	42mm +4mm
Tire Outer Diameter	698mm	706mm +8mm
Bike Length with Tires	1754mm	1758mm +4mm
Suspension Type	Rigid, non-suspension corrected	Rigid, non-suspension corrected
Bar Type	Drop Bar	Drop Bar
Frame Material	Aluminum	Carbon/Composite
Fork Material	Unknown	Carbon/Composite
Brake Type	Rim	Disc

Actions	Collection I've Ridden	Collection I've Ridden
Source	https://www.ridley-bikes.com/en_INT/bikes/SBIXTARID677	https://afbicycles.com/
Brand	Ridley Bikes	ASSISTING FORCE
Bike	2023 Kanzo A GRX400/600	2025 AF01 Base
Size	L	L
Category	All-road/Gravel	All-road/Gravel