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Holdsworth Helm Sizing and Geometry
| Rider Height | Suggested Frame Size |
|---|---|
| 5′4″ to 5′7″ | XSM |
| 5′6″ to 5′8″ | SML |
| 5′7″ to 5′10″ | MED |
| 5′9″ to 6′1″ | LRG |
| 6′0″ to 6′4″ | XLG |
| XSM | SML | MED | LRG | XLG | ||
| A | Head Angle (degrees) | 71.5 | 72 | 72 | 72.5 | 72.5 |
| B | Head Tube (mm) | 100 | 120 | 140 | 160 | 180 |
| C | Top Tube Effective(mm) | 500 | 520 | 540 | 560 | 580 |
| D | Seat Tube Angle (degrees) | 74 | 74 | 73.5 | 73.5 | 73 |
| E | Seat Tube C-T (mm) | 485 | 515 | 535 | 555 | 575 |
| F | Chainstays (mm) | 415 | 415 | 415 | 415 | 415 |
| G | BB Drop (mm) | 74 | 74 | 72 | 72 | 70 |
| H | Stack (mm) | 505 | 526 | 543 | 564 | 581 |
| I | Reach (mm) | 355 | 369 | 379 | 393 | 402 |
| J | Front Centre (mm) | 552 | 568 | 584 | 600 | 615 |
| K | Wheelbase (mm) | 955 | 972 | 988 | 1004 | 1020 |