Jamis Portal 2021

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Geometry

  XS/14.5″ S/15.5″ M/17″HI M/17"LO L/19″ XL/21″
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Reach 366 336 410 522 426 450
Stack 496 649 645 583 603 629
Top Tube (effective) 614 673 542 562 553 567
Head Angle 67.5-68 67.5-68 57 74 67.5-68 67.5-68
Seat Angle 74.5-75 74.5-75 62 71 74.5-75 74.5-75
Head Tube 101 99 134 137 115 110
Chainstay 367 500 438 372 513 408
Wheelbase 1124 1277 1177 1116 1176 1418
Standover 661 744
BB Drop 26-33 26-33 23 27 26-33 26-33
Wheel Size 30 25 24 28 27 27
Data Source Manufacturer Manufacturer Manufacturer Manufacturer Manufacturer Manufacturer

Measurements are in millimeters and degrees.

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