Our new Aeris AM features everything we’ve become known for, progressive geometry, massive standover height, responsive pedalling dynamics, but this time all packaged in our lightest and most advanced all-mountain frame to date.
– Light enough to ride all day, strong enough to tackle the biggest challenges.
– Bird’s 4th generation, compact frame design give max clearance for you on the descents, while still leaving room for a 750ml bottle and storage pack.
– 160mm of efficient travel, capable of riding any trail up or down.
– Lifetime warranty on all frame bearings including bottom bracket and headset (with Enduro BB/Headset upgrade)
– A price you can afford, without compromising on quality, service or style.
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Aeris AM Features & Specification
- 5 frame sizes – Updated Wingspan geometry with new R1-5 sizing
- 2600g for R3 frame size ex. shock.
- Complete builds from 27.8lbs / 12.6 kg
- 160mm rear travel from 230x65mm shock (8x30mm hardware or bearing mounts)
- 29″ or 27.5″ rear wheel with identical bottom bracket height in both settings
- 160 or 170mm front travel
- Double lip seals on main pivot bearings, top hat covers on all other bearings
- Collet axles on all pivots, with oversize main axle
- Internal, damped cable routing in the main frame
- Double bottle cage mounts, custom frame storage bag coming soon*
- 148mm boost rear axle
- BSA 73 bottom bracket
- 180mm rear post mount, Max 203mm
- 2.5″ tyre clearance
*Double bosses on Sizes ML/L/XL only
![](https://www.bird.bike/wp-content/uploads/2023/08/Aeris-Am-Side-On-1024x474.jpg)
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![](https://www.bird.bike/wp-content/uploads/2023/08/AM-Side-3-1010x1024.jpg)
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![](https://www.bird.bike/wp-content/uploads/2023/11/DSC09196-576x1024.jpeg)
![](https://www.bird.bike/wp-content/uploads/2023/09/DSC09263-1024x1024.jpg)