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 504 415 441 593
Stack 590 706 708 628
Top Tube (effective) 668 510 552 761
Seat Tube C-T 345 381 410 433
Head Angle 73 59 57 73
Seat Angle 70 78 77 63
Head Tube 115 131 100 123
Chainstay 457 362 367 357
Wheelbase 1357 1469 1341 1409
Standover 660 682 812 717
BB Height 372 407 401 334
BB Type 73 mm BSA Threaded 73 mm BSA Threaded 73 mm BSA Threaded 73 mm BSA Threaded
Fork Rake / Offset 50 34 48 49
Fork Length (A2C) 559 601 537 625
Seatpost Diameter 31 37 27 34
Axle Spacing 135 150 125 139
Wheel Size 29" 29" 29" 29"
Tyre Max Width 2.6" 2.6" 2.6" 2.6"
Front Travel 172 143 180 151
Rear Travel 151 144 168 137
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 28 36 34 32
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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