2020 BMC Switzerland Fourstroke Base S
Build
700C/29 in × 2.25 in
Insights
Somewhat aggressive stack and reach vs trend of full-suspension cross-country mtb bikes
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 580mm |
| Reach | 423mm |
| Stack to Reach Ratio | 1.37:1 |
| Seat Tube Length, C-T | 420mm |
| Top Tube Length, Effective/Horizontal HT Top | 582mm |
| Top Tube Slope | 18.2deg |
| Head Tube Angle | 67.5deg |
| Seat Tube Angle | 75.6deg |
| Head Tube Length | 96mm |
| Bottom Bracket Drop | 44mm |
| Bottom Bracket Height | 324.2mm |
| Chainstay Length | 429mm |
| Chainstay Length Horizontal | 426.7mm |
| Front-Center | 700mm |
| Front-Center Horizontal | 702.3mm |
| Wheelbase | 1129mm |
| Fork Offset/Rake | 44mm |
| Fork Length (Axle-To-Crown) | 506mm |
| Trail | 104.9mm very high |
| Mechanical Trail | 96.9mm |
| Wheel Flop | 37.1mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 161.9mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 154.2mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 2.25in |
| Tire Outer Diameter | 736.3mm |
| Bike Length with Tires | 1865.3mm |
| Crank Length | 170mm |
| Handlebar Width | 720mm |
| Stem Length | 50mm |
| Stem Angle | -5deg |
| Suspension Type | Full suspension |
| Bar Type | Flat Bar |
| Fork Travel | 120mm |
| Rear Travel | Unknown |
| Suspension Sag | Unknown |
| Frame Material | Carbon/Composite |
| Fork Material | Aluminum |
| Brake Type | Disc |
Source:https://www.bmc-switzerland.com/fourstroke-01-one-301871.html