Jamis Helix

Jamis Helix


Building great recreational-level bikes for both men and women that ride much like our hi-end bikes is a passion at Jamis. And no bikes showcase our commitment to do just that better than these. The 27.5” wheel size is not a compromise between 26” or 29”: it’s the best of both worlds. The Helix chassis emphasizes all-day performance and quick handling without being overly darty. Low standover, short reach stems and brakes, wide range gearing and gender specific saddles are just some of the features of the highly capable Helix line-up.

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Frame6061 aluminum main tubes, over-sized seat tube, zero-stack head tube, over-sized stays, replaceable derailleur hanger

ForkSR Suntour XCT 27.5", coil spring, external preload adjustor, 28mm stanchions, aluminum lowers, 100mm travel

HeadsetZero-stack internal cup threadless, 15mm cone spacer

WheelsAlex TD26 27.5" rims, 32H, alloy 6-bolt disc hubs, 14G nickel-plated spokes

TiresCST Patrol, 27.5 x 2.25”

DerailleursShimano TY300 rear and TY500 front

Shift leversShimano EF41, 3x7-speed

ChainKMC Z51, 7-speed

CassetteShimano TZ31, 7-speed, 14-34T


BB SetSealed cartridge

PedalsMTB platform, hi-impact resin

BrakesetTektro M280 mechanical disc, 160mm rotors and Shimano levers

HandlebarJamis XC riser, 25.4 x 20mm rise x 620mm

StemJamis XC alloy threadless, 31.8 x 10˚ rise x 70mm (14”/16"), 90mm (18")


Seat PostJamis alloy micro-adjust, 31.6 x 350mm (14") 400mm (16"/18")

SaddleJamis MTB Sport Women's, SL cover, protective front and rear guards

Sizes14”, 16”, 18”

ColorAno Black or Ano Grape Jelly

Weight32.50 lbs