Bird Forge 2021

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Geometry

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Reach 437 440 423 519
Stack 529 618 759 770
Top Tube (effective) 507 640 665 564
Seat Tube C-T 430 490 484 468
Seat Tube (effective) 68 83 70 78
Head Angle 72 76 73 74
Seat Angle 80 78 75 68
Head Tube 119 103 127 113
Chainstay 480 347 520 481
Wheelbase 1312 1079 1463 1497
BB Drop 84 88 100 103
BB Height 297 325 261 314
BB Type 73mm BSA Threaded 73mm BSA Threaded 73mm BSA Threaded 73mm BSA Threaded
Fork Rake / Offset 40 49 36 36
Fork Length (A2C) 509 497 596 583
Seatpost Diameter 29 29 27 31
Wheel Size 30 27 23 33
Front Travel 143 165 143 113
Seat Clamp 37 40 34 37
Data Source Manufacturer Manufacturer Manufacturer Manufacturer

Note: Sagged 30% with 140mm Fork

Measurements are in millimeters and degrees.

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