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Bird Forge 2021


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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 464 567 560 565 462
Stack 636 596 598 731 757
Top Tube (effective) 690 536 600 640 687
Seat Tube C-T 463 491 429 457
Seat Tube (effective) 87 75 68 65
Head Angle 78 70 68 61 58
Seat Angle 82 70 89 85 78
Head Tube 82 116 99 140 141
Chainstay 381 431 496 483 457
Wheelbase 1244 1182 1273 1037 1182
BB Drop 81 80 85 59 100
BB Height 299 256 300 296 296
BB Type 73mm BSA Threaded 73mm BSA Threaded 73mm BSA Threaded 73mm BSA Threaded 73mm BSA Threaded
Fork Rake / Offset 37 35 37 43 40
Fork Length (A2C) 600 412 574 516
Seatpost Diameter 27 27 27 30 28
Wheel Size 25 32 27 31 32
Front Travel 136 122 163 124 149
Headset EC34 / EC44 EC34 / EC44 EC34 / EC44 EC34 / EC44 EC34 / EC44
Seat Clamp 39 37 33 40 40
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.

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