Bird Aeris 9 2023


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Geometry

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To view geometry data you must use a web browser that supports JavaScript. See: browser-update.org
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Reach 523 435 515 633
Stack 621 622 757 569
Top Tube (effective) 676 615 661 802
Seat Tube C-T 329 409 379 531
Head Angle 67 65 74 74
Seat Angle 83 64 87 74
Head Tube 105 124 105 116
Chainstay 513 504 445 377
Wheelbase 1276 1191 1161 1433
Standover 793 577 747 727
BB Height 366 288 378 290
BB Type 73 mm BSA Threaded 73 mm BSA Threaded 73 mm BSA Threaded 73 mm BSA Threaded
Fork Rake / Offset 40 46 49 34
Fork Length (A2C) 643 496 517 502
Seatpost Diameter 30 25 33 31
Axle Spacing 130 119 118 156
Wheel Size 29" 29" 29" 29"
Tyre Max Width 2.6" 2.6" 2.6" 2.6"
Front Travel 151 138 190 187
Rear Travel 185 156 187 137
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 39 40 41 33
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

Standard measurements are in millimeters and degrees. The site attempts to recognize and convert other units back to standard - results may vary.

Image showing geometry measurements

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