2020 BMC Switzerland URS Four

Design
Drop Bar, Rigid, non-suspension corrected
Frame
Carbon/Composite
Fork
Carbon/Composite
Features
Disc brake
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category
Average stack and reachvs category
Somewhat upright stack and reachvs category

Geometry

S
M
L
XL
Stack
538mm
569mm
603mm
641mm
Reach
403mm
415mm
419mm
429mm
Stack to Reach Ratio
1.33:1
1.37:1
1.44:1
1.49:1
Seat Tube Length, C-T
431mm
459mm
492mm
527mm
Seat Tube Length, C-TTT
431mm
459mm
492mm
527mm
Top Tube Length, Effective/Horizontal HT Top
557mm
578mm
591mm
612mm
Top Tube Slope
13.3deg
13.3deg
13.2deg
13.2deg
Head Tube Angle
70deg
70deg
70deg
70deg
Seat Tube Angle
74deg
74deg
74deg
74deg
Head Tube Length
113mm
146mm
172mm
207mm
Bottom Bracket Drop
69mm
69mm
69mm
69mm
Bottom Bracket Height
284mm
284mm
284mm
284mm
Chainstay Length
425mm
425mm
425mm
425mm
Chainstay Length Horizontal
419.4mm
419.4mm
419.4mm
419.4mm
Front-Center
625mm
648mm
665mm
700mm
Front-Center Horizontal
621.6mm
644.6mm
661.6mm
685.6mm
Wheelbase
1041mm
1064mm
1081mm
1105mm
Fork Offset/Rake
45mm
45mm
45mm
45mm
Fork Length (On-Axis)
407mm
407mm
407mm
407mm
Trail
80.6mm
very high
80.6mm
very high
80.6mm
very high
80.6mm
very high
Mechanical Trail
75.7mm
75.7mm
75.7mm
75.7mm
Wheel Flop
25.9mm
25.9mm
25.9mm
25.9mm
Tire to Pedal Spindle
102mm
170 mm cranks
122.5mm
172.5 mm cranks
139.5mm
172.5 mm cranks
172mm
175 mm cranks
Pedal Spindle to Ground Clearance
114mm
170 mm cranks
111.5mm
172.5 mm cranks
111.5mm
172.5 mm cranks
109mm
175 mm cranks

Four 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
42mm
42mm
42mm
42mm
Tire Width Max
45mm
45mm
45mm
45mm
Tire Outer Diameter
706mm
706mm
706mm
706mm
Bike Length with Tires
1747mm
1770mm
1787mm
1811mm
Crank Length
170mm
172.5mm
172.5mm
175mm
Handlebar Width
420mm
420mm
440mm
440mm
Stem Length
55mm
55mm
70mm
70mm

Published Sizing Recommendations

Height
172 cm
to
180 cm
178 cm
to
188 cm
186 cm
to
196 cm

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
Category Trend
Progressive Gravel
Source:https://us-en.bmc-switzerland.com/urs-four.html