2025 Norco · MDB
2025 Norco Optic Gen 3 geometry
Full frame geometry for the 2025 Norco Optic Gen 3, 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) | Trail (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SZ1 | 608 | 422.5 | 76.5 | 65 | 100 | 568 | 350 | 675 | 32 | 421 | 1159 | 44 | 128 |
| SZ2 | 617 | 447.5 | 76.8 | 65 | 110 | 593 | 370 | 677 | 32 | 425 | 1193 | 44 | 128 |
| SZ3 | 626 | 472.5 | 77 | 65 | 120 | 617 | 385 | 678 | 32 | 429 | 1226 | 44 | 128 |
| SZ4 | 635 | 497.5 | 77.3 | 65 | 130 | 641 | 430 | 707 | 32 | 433 | 1259 | 44 | 128 |
| SZ5 | 644 | 522.5 | 77.5 | 65 | 140 | 665 | 445 | 705 | 32 | 437 | 1292 | 44 | 128 |
All measurements in millimetres unless marked (°) for angles.