2021 BMC Switzerland ALPENCHALLENGE Base S
Build
700C/29 in × 35 mm
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 530mm |
| Reach | 390mm |
| Stack to Reach Ratio | 1.36:1 |
| Seat Tube Length, C-T | 440mm |
| Top Tube Length, Effective/Horizontal HT Top | 552mm |
| Top Tube Slope | 11.9deg |
| Head Tube Angle | 71deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 122mm |
| Bottom Bracket Drop | 50mm |
| Bottom Bracket Height | 296mm |
| Chainstay Length | 436mm |
| Chainstay Length Horizontal | 433.1mm |
| Front-Center | 608mm |
| Front-Center Horizontal | 605.9mm |
| Wheelbase | 1039mm |
| Fork Offset/Rake | 48mm |
| Fork Length (On-Axis) | 405mm |
| Trail | 68.4mm high |
| Mechanical Trail | 64.7mm |
| Wheel Flop | 21.1mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 92mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 126mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 35mm |
| Tire Outer Diameter | 692mm |
| Bike Length with Tires | 1731mm |
| Crank Length | 170mm |
| Handlebar Width | 600mm |
| Stem Length | 90mm |
| Stem Angle | 8deg |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Flat Bar |
| Frame Material | Aluminum |
| Fork Material | Aluminum |
| Brake Type | Disc |
Source:www.bmc-switzerland.com