2020 BMC Switzerland Fourstroke Base

Design
Flat Bar, Full suspension
Frame
Carbon/Composite
Fork
Aluminum
Suspension
120mm fork travel
Features
Disc brake
Somewhat aggressive stack and reachvs category
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Somewhat aggressive stack and reachvs category
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Average stack and reachvs category
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Average stack and reachvs category
Suspension sag unknown
Geometry may mis-represent actual riding geometry

Geometry

S
M
L
XL
Stack
580mm
590mm
600mm
615mm
Reach
423mm
445mm
465mm
485mm
Stack to Reach Ratio
1.37:1
1.33:1
1.29:1
1.27:1
Seat Tube Length, C-T
420mm
440mm
480mm
510mm
Top Tube Length, Effective/Horizontal HT Top
582mm
607mm
630mm
654mm
Top Tube Slope
18.2deg
16.5deg
13deg
11.2deg
Head Tube Angle
67.5deg
67.5deg
67.5deg
67.5deg
Seat Tube Angle
75.6deg
75.6deg
75.6deg
75.6deg
Head Tube Length
96mm
107mm
117mm
134mm
Bottom Bracket Drop
44mm
44mm
44mm
44mm
Bottom Bracket Height
324.2mm
324.2mm
324.2mm
324.2mm
Chainstay Length
429mm
429mm
429mm
429mm
Chainstay Length Horizontal
426.7mm
426.7mm
426.7mm
426.7mm
Front-Center
700mm
726mm
750mm
777mm
Front-Center Horizontal
702.3mm
728.3mm
753.3mm
779.3mm
Wheelbase
1129mm
1155mm
1180mm
1206mm
Fork Offset/Rake
44mm
44mm
44mm
44mm
Fork Length (Axle-To-Crown)
506mm
506mm
506mm
506mm
Trail
104.9mm
very high
104.9mm
very high
104.9mm
very high
104.9mm
very high
Mechanical Trail
96.9mm
96.9mm
96.9mm
96.9mm
Wheel Flop
37.1mm
37.1mm
37.1mm
37.1mm
Tire to Pedal Spindle
161.9mm
170 mm cranks
182.9mm
175 mm cranks
206.9mm
175 mm cranks
233.9mm
175 mm cranks
Pedal Spindle to Ground Clearance
154.2mm
170 mm cranks
149.2mm
175 mm cranks
149.2mm
175 mm cranks
149.2mm
175 mm cranks

Base Build

S
M
L
XL
Wheel Size
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
Tire Width
2.25in
2.25in
2.25in
2.25in
Tire Outer Diameter
736.3mm
736.3mm
736.3mm
736.3mm
Bike Length with Tires
1865.3mm
1891.3mm
1916.3mm
1942.3mm
Crank Length
170mm
175mm
175mm
175mm
Handlebar Width
720mm
720mm
720mm
720mm
Stem Length
50mm
60mm
60mm
70mm
Stem Angle
-5deg
-5deg
-5deg
-5deg

Published Sizing Recommendations

Height
172 cm
to
182 cm
180 cm
to
188 cm
188 cm
to

Stack and Reach vs. Category Trend

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.

Learn more about the Upright/Aggressive Scale
Source:https://www.bmc-switzerland.com/fourstroke-01-one-301871.html