2026 BC Original Gravel Base S
Build
700C/29 in × 45 mm
Insights
Somewhat upright stack and reach vs trend of all-road/gravel bikes
Stack and Reach vs. Category Trend
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Geometry
| Stack | 570mm |
| Reach | 365mm |
| Stack to Reach Ratio | 1.56:1 |
| Seat Tube Length, Unknown | 475mm |
| Top Tube Length, Effective/Horizontal Unknown | 540mm |
| Top Tube Slope | 12.9deg |
| Head Tube Angle | 70deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 150mm |
| Bottom Bracket Drop | 55mm |
| Bottom Bracket Height | 301mm |
| Chainstay Length | 425mm |
| Chainstay Length Horizontal | 421.4mm |
| Front-Center | 603.1mm |
| Front-Center Horizontal | 600.6mm |
| Wheelbase | 1022mm |
| Fork Offset/Rake | 50mm |
| Fork Length (Axle-To-Crown) | 400mm |
| Trail | 76.4mm high |
| Mechanical Trail | 71.8mm |
| Wheel Flop | 24.5mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 77.1mm |
| 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 | 1734mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 160 cm to 170 cm |
Source:www.bike-components.de