2025 YT · MD
2025 YT Jeffsy 29 CF geometry
Full frame geometry for the 2025 YT Jeffsy 29 CF, 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| S | 613 | 435 | 76.9 | 65 | 100 | 578 | 385 | 730 | 33 | 437 | 1191 |
| M | 620 | 455 | 77.5 | 65 | 108 | 593 | 410 | 728 | 33 | 437 | 1214 |
| L | 627 | 475 | 77.9 | 65 | 116 | 609 | 435 | 732 | 33 | 437 | 1238 |
| XL | 634 | 495 | 78.3 | 65 | 124 | 627 | 460 | 738 | 33 | 442 | 1266 |
| XXL | 642 | 515 | 78.6 | 65 | 132 | 645 | 485 | 742 | 33 | 442 | 1289 |
All measurements in millimetres unless marked (°) for angles.