2026 BC Original Gravel Base M
Build
700C/29 in × 45 mm
Insights
Average stack and reach vs trend of all-road/gravel bikes
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 580mm |
| Reach | 382mm |
| Stack to Reach Ratio | 1.52:1 |
| Seat Tube Length, Unknown | 485mm |
| Top Tube Length, Effective/Horizontal Unknown | 560mm |
| Top Tube Slope | 12.5deg |
| Head Tube Angle | 70deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 160mm |
| Bottom Bracket Drop | 55mm |
| Bottom Bracket Height | 301mm |
| Chainstay Length | 425mm |
| Chainstay Length Horizontal | 421.4mm |
| Front-Center | 625mm |
| Front-Center Horizontal | 622.6mm |
| Wheelbase | 1044mm |
| Fork Offset/Rake | 50mm |
| Trail | 76.4mm high |
| Mechanical Trail | 71.8mm |
| Wheel Flop | 24.5mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 99mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 131mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 45mm |
| Tire Outer Diameter | 712mm |
| Bike Length with Tires | 1756mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 165 cm to 180 cm |
Source:www.bike-components.de