2022 BMC Switzerland Fourstroke 01 ONE

	S	M	L	XL
Stack	584mm	592mm	600mm	615mm
Reach	437mm	457mm	477mm	500mm
Stack to Reach Ratio	1.34:1	1.3:1	1.26:1	1.23:1
Seat Tube Length, Unknown	420mm	440mm	470mm	510mm
Top Tube Length, Effective/Horizontal Unknown	574mm	597mm	621mm	649mm
Top Tube Slope	18.2deg	16.4deg	13.7deg	10.9deg
Head Tube Angle	66.5deg	66.5deg	66.5deg	66.5deg
Seat Tube Angle	76.7deg	76.7deg	76.7deg	76.7deg
Head Tube Length	84mm	93.5mm	101mm	117.6mm
Bottom Bracket Drop	53mm	53mm	53mm	53mm
Bottom Bracket Height	317.7mm	317.7mm	317.7mm	317.7mm
Chainstay Length	432mm	432mm	432mm	432mm
Chainstay Length Horizontal	428.7mm	428.7mm	428.7mm	428.7mm
Front-Center	714mm	738mm	762mm	791mm
Front-Center Horizontal	710.3mm	742.3mm	759.3mm	789.3mm
Wheelbase	1139mm	1171mm	1188mm	1218mm
Fork Offset/Rake	38.9mm	46.7mm	40.7mm	41.2mm
Trail	118.8mm very high	110.3mm very high	116.8mm very high	116.3mm very high
Mechanical Trail	109mm	101.1mm	107.1mm	106.6mm
Wheel Flop	43.4mm	40.3mm	42.7mm	42.5mm
Tire to Pedal Spindle	173.3mm 170 mm cranks	197.3mm 170 mm cranks	221.3mm 170 mm cranks	250.3mm 170 mm cranks
Pedal Spindle to Ground Clearance	147.7mm 170 mm cranks	147.7mm 170 mm cranks	147.7mm 170 mm cranks	147.7mm 170 mm cranks

Very Upright

Somewhat Upright

Average

Somewhat Aggressive

Very Aggressive

The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.

Category Trend

Source:https://ep1.pinkbike.org/p4pb23481920/p4pb23481920.jpg

Geometry