2020 BMC Switzerland URS Four
- Category
- Progressive Gravel
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Carbon/Composite
- Fork
- Carbon/Composite
- Features
- Disc brake
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 ScaleCategory Trend
Progressive GravelSource:https://us-en.bmc-switzerland.com/urs-four.html