Bird Aeris 120 2017
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Geometry
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| Small | Medium | Medium/Large | Large | |
|---|---|---|---|---|
| Compare | ||||
| Reach | 463 | 532 | 418 | 433 |
| Stack | 591 | 496 | 481 | 644 |
| Top Tube (effective) | 650 | 527 | 506 | 565 |
| Seat Tube C-T | 382 | 370 | 403 | 561 |
| Head Angle | 58 | 53 | 60 | 54 |
| Seat Angle | 74 | 70 | 68 | 66 |
| Head Tube | 99 | 123 | 136 | 141 |
| Chainstay | 344 | 462 | 373 | 374 |
| Wheelbase | 923 | 1192 | 1226 | 1335 |
| Standover | 787 | 627 | 735 | 810 |
| BB Drop | 21 | 21 | 16 | 21 |
| BB Height | 384 | 346 | 358 | 289 |
| BB Type | 73mm Threaded | 73mm Threaded | 73mm Threaded | 73mm Threaded |
| Fork Rake / Offset | 43 | 45 | 43 | 45 |
| Fork Length (A2C) | 448 | 641 | 606 | 521 |
| Seatpost Diameter | 34 | 25 | 25 | 33 |
| Axle Spacing | 148 x 12 | 148 x 12 | 148 x 12 | 148 x 12 |
| Wheel Size | 650B | 650B | 650B | 650B |
| Rear Travel | 110 | 122 | 109 | 129 |
| Shock Size | 210 x 55 | 210 x 55 | 210 x 55 | 210 x 55 |
| Headset | Tapered | Tapered | Tapered | Tapered |
| Seat Clamp | 30 | 31 | 34 | 38 |
| Data Source | Manufacturer | Manufacturer | Manufacturer | Manufacturer |
Measurements are in millimeters and degrees.
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