Compare: 2023 BMC Switzerland Kaius 01 One 56 vs 2025 incolor VOYAGER Base 57

Insights

Average stack and reach vs trend of progressive gravel bikes

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

Design deviates from other sizes of incolor VOYAGER

Stack	570mm	580mm +10mm
Reach	405mm	397mm -8mm
Stack to Reach Ratio	1.41:1	1.46:1
Seat Tube Length, C-T	493mm	—
Top Tube Length, Effective/Horizontal Center	579mm	—
Top Tube Length, Effective/Horizontal Unknown	—	569mm
Top Tube Slope	10.2deg	—
Head Tube Angle	72deg	72deg +0deg
Seat Tube Angle	73deg	73.5deg +0.5deg
Head Tube Length	144mm	168mm +24mm
Bottom Bracket Drop	80mm	74mm -6mm
Bottom Bracket Height	271mm	277mm +6mm
Chainstay Length	—	415mm
Chainstay Length Horizontal	420mm	408.4mm -11.6mm
Front-Center	619mm	618mm -1mm
Front-Center Horizontal	606mm	613.7mm +7.7mm
Wheelbase	1026mm	1022mm -4mm
Fork Offset/Rake	45mm	49.7mm +4.7mm
Fork Length (Axle-To-Crown)	387mm	—
Fork Length, Unknown	—	380mm
Trail	66.7mm high	61.8mm -4.9mm mid/neutral
Mechanical Trail	63.5mm	58.8mm -4.7mm
Wheel Flop	19.6mm	18.2mm -1.4mm
Standover Height	780mm	806mm +26mm
Tire to Pedal Spindle	95.5mm 172.5 mm cranks	97mm +1.5mm 170 mm cranks
Pedal Spindle to Ground Clearance	98.5mm 172.5 mm cranks	107mm +8.5mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	40mm	40mm +0mm
Tire Width Max	44mm	45mm +1mm
Tire Outer Diameter	702mm	702mm +0mm
Bike Length with Tires	1728mm	1724mm -4mm
Crank Length	172.5mm	—
Stem Length	90mm	—
Stem Angle	-12.5deg	—
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