Bird Aeris 9 2023


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Geometry

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Reach 458 582 494 533
Stack 536 508 624 748
Top Tube (effective) 631 717 774 781
Seat Tube C-T 323 438 457 388
Head Angle 67 50 59 71
Seat Angle 63 69 82 71
Head Tube 92 107 141 122
Chainstay 424 482 507 483
Wheelbase 1087 1084 1047 1374
Standover 557 637 758 629
BB Height 350 323 280 304
BB Type 73 mm BSA Threaded 73 mm BSA Threaded 73 mm BSA Threaded 73 mm BSA Threaded
Fork Rake / Offset 38 37 47 36
Fork Length (A2C) 465 619 672 599
Seatpost Diameter 33 34 27 34
Axle Spacing 177 171 122 171
Wheel Size 29" 29" 29" 29"
Tyre Max Width 2.6" 2.6" 2.6" 2.6"
Front Travel 178 146 147 155
Rear Travel 134 165 178 180
Shock Size 230 x 65 230 x 65 230 x 65 230 x 65
Headset Tapered ZS44 / ZS56 Tapered ZS44 / ZS56 Tapered ZS44 / ZS56 Tapered ZS44 / ZS56
Seat Clamp 38 40 36 40
Data Source Manufacturer Manufacturer Manufacturer Manufacturer

Note: Static Geometry with 170mm Fork. Chainstay flip chip can add 6mm to chainstay, -0.5 degrees Head Angle and lower BB height by 7mm in slack position

Measurements are in millimeters and degrees.

Image showing geometry measurements

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