2024 Bird Bikes Aeris AM Base 29" RS (XL)
Build
700C/29 in × 2.5 in
Insights
Somewhat aggressive stack and reach vs trend of hardtail all-mountain/enduro mtb bikes
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 645mm |
| Reach | 525mm |
| Stack to Reach Ratio | 1.23:1 |
| Seat Tube Length, C-T | 470mm |
| Top Tube Length, Effective/Horizontal Unknown | 656mm |
| Top Tube Slope | 16.6deg |
| Head Tube Angle | 64deg |
| Seat Tube Angle | 78.5deg |
| Head Tube Length | 130mm |
| Bottom Bracket Drop | 30mm |
| Bottom Bracket Height | 344.5mm |
| Chainstay Length | 440mm |
| Chainstay Length Horizontal | 439mm |
| Front-Center | 862mm |
| Front-Center Horizontal | 872mm |
| Wheelbase | 1311mm |
| Fork Offset/Rake | 42.3mm |
| Fork Length (Axle-To-Crown) | 571mm |
| Trail | 135.6mm very high |
| Mechanical Trail | 121.9mm |
| Wheel Flop | 53.4mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 317.5mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 174.5mm |
Base 29" Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 2.5in |
| Tire Outer Diameter | 749mm |
| Bike Length with Tires | 2060mm |
| Suspension Type | Full suspension |
| Bar Type | Flat Bar |
| Fork Travel | 160mm |
| Rear Travel | 160mm |
| Suspension Sag | Unknown |
| Frame Material | Carbon/Composite |
| Fork Material | Unknown |
| Brake Type | Disc |
Source:https://www.bird.bike/aeris-am/