2021 Bird Bikes Aether 7 Base S
Build
650B/27.5 in × 2.4 in
Insights
Average stack and reach vs trend of full-suspension trail mtb bikes
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 595mm |
| Reach | 432mm |
| Stack to Reach Ratio | 1.38:1 |
| Seat Tube Length, Unknown | 370mm |
| Top Tube Length, Effective/Horizontal Unknown | 580mm |
| Top Tube Slope | 24.4deg |
| Head Tube Angle | 65deg |
| Seat Tube Angle | 76deg |
| Head Tube Length | 110mm |
| Bottom Bracket Drop | 25mm |
| Bottom Bracket Height | 328mm |
| Chainstay Length | 425mm |
| Chainstay Length Horizontal | 424.3mm |
| Front-Center | 739.2mm |
| Front-Center Horizontal | 738.7mm |
| Wheelbase | 1163mm |
| Fork Offset/Rake | 37mm |
| Fork Length (Axle-To-Crown) | 532mm |
| Trail | 123.8mm very high |
| Mechanical Trail | 112.2mm |
| Wheel Flop | 47.4mm |
| Standover Height | 679mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 216.2mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 158mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.4in |
| Tire Outer Diameter | 705.9mm |
| Bike Length with Tires | 1868.9mm |
| Suspension Type | Full suspension |
| Bar Type | Flat Bar |
| Fork Travel | 140mm |
| Rear Travel | 130mm |
| Suspension Sag | 30% |
| Frame Material | Aluminum |
| Fork Material | Unknown |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 5 ft 0 in to 5 ft 7 in |
Source:https://www.bird.bike/aether-7/