Brother Big Bro 2021
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Geometry
| Add to Compare |
| Reach |
| Stack |
| Top Tube (effective) |
| Top Tube (actual) |
| Seat Tube C-T |
| Head Angle |
| Seat Angle |
| Head Tube |
| Chainstay |
| Wheelbase |
| Standover |
| BB Drop |
| Fork Rake / Offset |
| Fork Length (A2C) |
| Seatpost Diameter |
| Data Source |
| Small (16) | Medium (18) | Large (20) | xLarge (22) | |
|---|---|---|---|---|
| Add to Compare | ||||
| Reach | 356 | 386 | 459 | 521 |
| Stack | 642 | 527 | 566 | 576 |
| Top Tube (effective) | 587 | 677 | 508 | 747 |
| Top Tube (actual) | 597 | 583 | 682 | 513 |
| Seat Tube C-T | 410 | 410 | 526 | 479 |
| Head Angle | 81 | 67 | 68 | 77 |
| Seat Angle | 80 | 80 | 67 | 71 |
| Head Tube | 97 | 118 | 127 | 123 |
| Chainstay | 482 | 421 | 484 | 425 |
| Wheelbase | 1126 | 917 | 1008 | 1159 |
| Standover | 895 | 903 | 757 | 939 |
| BB Drop | 71 | 58 | 49 | 63 |
| Fork Rake / Offset | 38 | 51 | 49 | 46 |
| Fork Length (A2C) | 393 | 497 | 440 | 472 |
| Seatpost Diameter | 32 | 32 | 33 | 30 |
| Data Source | Manufacturer | Manufacturer | Manufacturer | Manufacturer |
Select 
two sizes then 'Compare'
two sizes then 'Compare'Measurements are in millimeters and degrees.
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