Bird Forge 2021


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Geometry

  Medium Medium Long Large Extra Large (unsagged) Extra Large
To view geometry data you must use a web browser that supports JavaScript. See: browser-update.org
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Reach 388 394 426 594 612
Stack 779 597 542 757 694
Top Tube (effective) 584 728 630 768 605
Seat Tube C-T 455 360 471 413
Seat Tube (effective) 83 82 86 67
Head Angle 77 57 68 58 70
Seat Angle 79 81 70 67 65
Head Tube 88 122 109 123 140
Chainstay 396 442 414 427 426
Wheelbase 976 1083 1467 1029 1504
BB Drop 76 91 91 70 74
BB Height 275 271 287 273 261
BB Type 73mm BSA Threaded 73mm BSA Threaded 73mm BSA Threaded 73mm BSA Threaded 73mm BSA Threaded
Fork Rake / Offset 48 41 42 47 38
Fork Length (A2C) 462 477 495 542
Seatpost Diameter 28 28 35 37 28
Wheel Size 24 34 27 25 32
Front Travel 143 126 131 113 117
Headset EC34 / EC44 EC34 / EC44 EC34 / EC44 EC34 / EC44 EC34 / EC44
Seat Clamp 30 35 32 40 29
Data Source Manufacturer + https://madscientistmtb.com/sagged-hardtail-geometry-calculator/ Manufacturer + https://madscientistmtb.com/sagged-hardtail-geometry-calculator/ Manufacturer + https://madscientistmtb.com/sagged-hardtail-geometry-calculator/ Manufacturer + https://madscientistmtb.com/sagged-hardtail-geometry-calculator/ Manufacturer + https://madscientistmtb.com/sagged-hardtail-geometry-calculator/

Note: Sagged 30% with 140mm Fork

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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