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 370 440 528 448
Stack 638 600 595 773
Top Tube (effective) 694 736 551 671
Seat Tube C-T 378 468 495 432
Head Angle 60 51 64 73
Seat Angle 78 85 85 70
Head Tube 89 128 117 117
Chainstay 427 388 430 470
Wheelbase 1125 1154 1266 1467
Standover 603 727 651 699
BB Height 309 370 281 318
BB Type 73 mm BSA Threaded 73 mm BSA Threaded 73 mm BSA Threaded 73 mm BSA Threaded
Fork Rake / Offset 47 39 44 43
Fork Length (A2C) 543 474 503 625
Seatpost Diameter 29 26 32 35
Axle Spacing 153 154 130 125
Wheel Size 29" 29" 29" 29"
Tyre Max Width 2.6" 2.6" 2.6" 2.6"
Front Travel 201 196 153 143
Rear Travel 175 153 150 172
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 40 41 41 35
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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