2015 Principia · R
2015 Principia RSL geometry
Full frame geometry for the 2015 Principia RSL, size by size — stack, reach, angles and tube lengths.
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Geometry by size
| Size | Stack (mm) | Reach (mm) | Seat angle (°) | Head angle (°) | Head tube (mm) | Top tube (mm) | Seat tube (mm) | BB drop (mm) | Front centre (mm) | Wheelbase (mm) | Fork rake (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 51 | 517 | 383 | 74.5 | 72 | 112 | 526 | 480 | 70 | 583 | 979 | 43 |
| 53 | 539 | 385 | 74 | 73 | 132 | 540 | 510 | 70 | 585 | 980 | 43 |
| 55 | 556 | 392 | 74 | 73 | 150 | 551 | 540 | 70 | 595 | 991 | 43 |
| 57 | 576 | 394 | 73.5 | 73 | 171 | 565 | 565 | 70 | 604 | 1000 | 43 |
| 59 | 596 | 401 | 73.5 | 73.5 | 190 | 578 | 590 | 70 | 612 | 1008 | 43 |
| 61 | 617 | 406 | 73 | 74 | 210 | 595 | 615 | 70 | 618 | 1014 | 43 |
All measurements in millimetres unless marked (°) for angles.