2025 Nicolai · MDB
2025 Nicolai G1 GPI geometry
Full frame geometry for the 2025 Nicolai G1 GPI, 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) | Standover (mm) | BB drop (mm) | Chainstay (mm) | Wheelbase (mm) | Fork rake (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S | 625 | 459 | 78.2 | 63 | 120 | 590 | 405 | 714 | 22.5 | 456 | 1272 | 44 |
| M | 646 | 479 | 78.3 | 63 | 140 | 612 | 440 | 694 | 27 | 456 | 1301 | 44 |
| L | 658 | 498 | 78.4 | 63.3 | 150 | 634 | 450 | 697 | 27.5 | 456 | 1321 | 44 |
| XL | 677 | 516 | 78.8 | 63.5 | 160 | 650 | 475 | 723 | 27 | 463 | 1352 | 44 |
| XXL | 688 | 534 | 78.9 | 63.8 | 170 | 670 | 500 | 770 | 27.5 | 463 | 1370 | 44 |
All measurements in millimetres unless marked (°) for angles.