2026 Basso Bikes Astra Base 51
Build
700C/29 in × 32 mm
Insights
Average stack and reach vs trend of endurance road bikes
Design deviates from other sizes of Basso Bikes Astra
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 563.4mm |
| Reach | 374.5mm |
| Stack to Reach Ratio | 1.5:1 |
| Seat Tube Length, C-T | 510mm |
| Top Tube Length, Effective/Horizontal Center | 525mm |
| Top Tube Slope | 8deg |
| Head Tube Angle | 72deg |
| Seat Tube Angle | 75deg |
| Head Tube Length | 150mm |
| Bottom Bracket Drop | 75mm |
| Bottom Bracket Height | 268mm |
| Chainstay Length | 404mm |
| Chainstay Length Horizontal | 397mm |
| Front-Center | 586.4mm |
| Front-Center Horizontal | 581.6mm |
| Wheelbase | 978.6mm |
| Fork Offset/Rake | 48mm |
| Fork Length (On-Axis) | 576.9mm |
| Trail | 61mm mid/neutral |
| Mechanical Trail | 58mm |
| Wheel Flop | 17.9mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 73.4mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 98mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 32mm |
| Tire Outer Diameter | 686mm |
| Bike Length with Tires | 1664.6mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://bassobikes.com/en/bikes/road-bikes/astra