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

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	584mm	578mm -6mm
Reach	386mm	389mm +3mm
Stack to Reach Ratio	1.51:1	1.49:1
Seat Tube Length, C-T	540mm	—
Seat Tube Length, Unknown	—	445mm
Top Tube Length, Effective/Horizontal Unknown	565mm	561mm -4mm
Top Tube Length, Actual C-C	835mm	—
Top Tube Slope	7.1deg	16.4deg +9.3deg
Head Tube Angle	71deg	71deg +0deg
Seat Tube Angle	73deg	73.5deg +0.5deg
Head Tube Length	158mm	152mm -6mm
Bottom Bracket Drop	72mm	78mm +6mm
Bottom Bracket Height	277mm	275mm -2mm
Chainstay Length	430mm	425mm -5mm
Chainstay Length Horizontal	423.9mm	417.8mm -6.1mm
Front-Center	614.3mm	624mm +9.7mm
Front-Center Horizontal	610.1mm	619.2mm +9.1mm
Wheelbase	1034mm	1037mm +3mm
Fork Offset/Rake	45.2mm	55mm +9.8mm
Fork Length, Unknown	—	395mm
Trail	72.4mm high	63.4mm -9mm mid/neutral
Mechanical Trail	68.5mm	59.9mm -8.6mm
Wheel Flop	22.3mm	19.5mm -2.8mm
Standover Height	829mm	—
Tire to Pedal Spindle	95.3mm 170 mm cranks	101mm +5.7mm 170 mm cranks
Pedal Spindle to Ground Clearance	107mm 170 mm cranks	105mm -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	1732mm	1743mm +11mm
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	M	M
Category	All-road/Gravel	All-road/Gravel