Jamis Portal 2021
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Geometry
| XS/14.5″ | S/15.5″ | M/17″HI | M/17"LO | L/19″ | XL/21″ | |
|---|---|---|---|---|---|---|
| Add to Compare | ||||||
| Reach | 460 | 491 | 376 | 374 | 447 | 503 |
| Stack | 536 | 674 | 552 | 662 | 697 | 740 |
| Top Tube (effective) | 646 | 510 | 531 | 705 | 592 | 626 |
| Head Angle | 67.5-68 | 67.5-68 | 62 | 56 | 67.5-68 | 67.5-68 |
| Seat Angle | 74.5-75 | 74.5-75 | 72 | 71 | 74.5-75 | 74.5-75 |
| Head Tube | 85 | 110 | 104 | 126 | 107 | 140 |
| Chainstay | 452 | 351 | 384 | 395 | 473 | 444 |
| Wheelbase | 1243 | 1002 | 1220 | 1063 | 1088 | 1133 |
| Standover | 663 | 624 | ||||
| BB Drop | 26-33 | 26-33 | 30 | 31 | 26-33 | 26-33 |
| Wheel Size | 28 | 31 | 26 | 34 | 34 | 23 |
| Data Source | Manufacturer | Manufacturer | Manufacturer | Manufacturer | Manufacturer | Manufacturer |
Standard measurements are in millimeters and degrees. The site attempts to recognize and convert other units back to standard - results may vary.
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