2020/v3 Bird Bikes Aeris AM9 170mm Fork unsagged
- Design
- Flat Bar, Full suspension
- Frame
- Aluminum
- Suspension
- 170mm fork travel, 150mm rear travel, 0% sag
- Features
- Disc brake
Geometry
Medium | Medium Long | Large | Extra Large | |
Stack | 614mm | 623mm | 623mm | 632mm |
Reach | 452mm | 475mm | 500mm | 522mm |
Stack to Reach Ratio | 1.36:1 | 1.31:1 | 1.25:1 | 1.21:1 |
Seat Tube Length, C-T | 395mm | 420mm | 445mm | 470mm |
Top Tube Length, Effective/Horizontal HT Top | 605mm | 630mm | 655mm | 680mm |
Head Tube Angle | 64.7deg | 64.7deg | 64.7deg | 64.7deg |
Effective Seat Tube Angle, ETT HT Top | 75.2deg | 75.2deg | 75.2deg | 75.2deg |
Head Tube Length | 100mm | 110mm | 110mm | 120mm |
Bottom Bracket Drop | 24mm | 24mm | 24mm | 24mm |
Bottom Bracket Height | 350.5mm | 350.5mm | 350.5mm | 350.5mm |
Chainstay Length | 440mm | 440mm | 440mm | 440mm |
Chainstay Length Horizontal | 439.3mm | 439.3mm | 439.3mm | 439.3mm |
Front-Center | 782.1mm | 809.4mm | 834.4mm | 860.6mm |
Front-Center Horizontal | 781.8mm | 809mm | 834mm | 860.3mm |
Wheelbase | 1221.1mm | 1248.4mm | 1273.4mm | 1299.6mm |
Fork Offset/Rake | 46mm | 46mm | 46mm | 46mm |
Fork Length (Axle-To-Crown) | 571mm | 571mm | 571mm | 571mm |
Trail | 126.2mm very high | 126.2mm very high | 126.2mm very high | 126.2mm very high |
Mechanical Trail | 114.1mm | 114.1mm | 114.1mm | 114.1mm |
Wheel Flop | 48.7mm | 48.7mm | 48.7mm | 48.7mm |
Tire to Pedal Spindle | 237.6mm 170 mm cranks | 264.9mm 170 mm cranks | 289.9mm 170 mm cranks | 316.1mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 180.5mm 170 mm cranks | 180.5mm 170 mm cranks | 180.5mm 170 mm cranks | 180.5mm 170 mm cranks |
170mm Fork unsagged Build
Medium | Medium Long | Large | Extra Large | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 2.5in | 2.5in | 2.5in | 2.5in |
Tire Outer Diameter | 749mm | 749mm | 749mm | 749mm |
Bike Length with Tires | 1970.1mm | 1997.4mm | 2022.4mm | 2048.6mm |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
Full-suspension All-mountain/Enduro MTBSource:https://www.bird.bike/wp-content/uploads/2020/08/Aeris-AM9-V3-Technical-Data-Sheet.pdf