Jamis Portal 2018


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Geometry

  XS/14.5" Lo XS/14.5" Hi S/15.5" Lo S/15.5" Hi M/17" Lo M/17" Hi L/19" Lo L/19" Hi XL/21" Lo XL/21" Hi
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Reach 353 359 374 427 372 384 538 482 421 395
Stack 648 523 496 680 518 685 640 526 759 758
Top Tube (effective) 535 618 600 504 728 501 703 603 722 786
Head Angle 57 69 73 56 64 60 58 56 56 80
Seat Angle 86 82 60 72 76 79 79 61 80 78
Head Tube 110 93 113 112 136 114 100 137 145 108
Chainstay 473 516 415 400 408 456 520 454 361 455
Wheelbase 1162 1250 1255 1209 1094 1276 1180 1432 1038 1259
Standover 600 687 703 646 651 625 843 824 649 888
BB Drop 29 28 27 26 30 30 28 23 36 31
Data Source Manufacturer Manufacturer Manufacturer Manufacturer 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.

Image showing geometry measurements

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