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 384 567 432 587
Stack 571 630 514 612
Top Tube (effective) 664 697 544 652
Seat Tube C-T 439 338 372 506
Head Angle 61 73 68 65
Seat Angle 75 85 69 70
Head Tube 90 99 96 148
Chainstay 488 374 459 443
Wheelbase 1111 1134 1223 1385
Standover 620 631 689 576
BB Height 328 347 275 294
BB Type 73 mm BSA Threaded 73 mm BSA Threaded 73 mm BSA Threaded 73 mm BSA Threaded
Fork Rake / Offset 48 49 50 49
Fork Length (A2C) 628 534 476 590
Seatpost Diameter 28 36 32 29
Axle Spacing 130 145 152 166
Wheel Size 29" 29" 29" 29"
Tyre Max Width 2.6" 2.6" 2.6" 2.6"
Front Travel 159 195 139 200
Rear Travel 142 171 188 173
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 36 28 36
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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