2021 Pure Bros Gravel Bike Expedition M
Build
700C/29 in × 40 mm
Insights
Average stack and reach vs trend of all-road/gravel bikes
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 564mm |
| Reach | 382mm |
| Stack to Reach Ratio | 1.48:1 |
| Seat Tube Length, C-T | 540mm |
| Top Tube Length, Effective/Horizontal Center | 550mm |
| Top Tube Slope | 4.9deg |
| Head Tube Angle | 71.5deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 130mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 281mm |
| Chainstay Length | 428mm |
| Chainstay Length Horizontal | 422.2mm |
| Front-Center | 604.8mm |
| Front-Center Horizontal | 600.8mm |
| Wheelbase | 1023mm |
| Fork Offset/Rake | 50.7mm |
| Trail | 64mm mid/neutral |
| Mechanical Trail | 60.7mm |
| Wheel Flop | 19.3mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 83.8mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 111mm |
Expedition Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 40mm |
| Tire Outer Diameter | 702mm |
| Bike Length with Tires | 1725mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 172 cm to 182 cm |
| PBH | 79 cm to 84 cm |
Source:https://www.finest-limited-cycles.com/stahlrahmen-gravel-bike-expedition/