2018 Crust Bikes Bombora Base M
Build
650B/27.5 in × 2.3 in
Insights
Average stack and reach vs trend of all-road/gravel bikes
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 576mm |
| Reach | 382mm |
| Stack to Reach Ratio | 1.51:1 |
| Seat Tube Length, C-T | 543mm |
| Seat Tube Length, C-C | 494mm |
| Top Tube Length, Effective/Horizontal Center | 560mm |
| Top Tube Length, Actual C-C | 545mm |
| Top Tube Slope | 5.7deg |
| Head Tube Angle | 71deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 153mm |
| Bottom Bracket Drop | 64mm |
| Bottom Bracket Height | 286.4mm |
| Chainstay Length | 425mm |
| Chainstay Length Horizontal | 420.2mm |
| Front-Center | 606.2mm |
| Front-Center Horizontal | 602.9mm |
| Wheelbase | 1023mm |
| Fork Offset/Rake | 48mm |
| Trail | 69.9mm high |
| Mechanical Trail | 66.1mm |
| Wheel Flop | 21.5mm |
| Standover Height | 804mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 85.8mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 116.4mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.3in |
| Tire Outer Diameter | 700.8mm |
| Bike Length with Tires | 1723.8mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Disc |
Source:https://crustbikes.com/products/bombora/