2017 Jamis Helix – Kids

2017 Jamis Helix – Kids


The RST Gila suspension fork delivers coil-sprung suspension travel with an MCU elastomer bumper that smoothes fork bottom-out. With a lightweight alloy crown and lowers and stout 28.6mm steel stanchions for stiffness, strength and a straight-tracking front wheel, this fork will deliver ride after ride.

The 21-speed Shimano EZ-Fire Plus drivetrain features a Shimano TX35 rear derailleur, alloy 42/34/24 crankset & Shimano SIS 14-34T freewheel for smooth shifting, easy climbing & secure descents.

Not so long ago, V-brakes were the most powerful bike brakes known to man. Then disc brakes came along. No biggie. V-brakes will still lock up your wheels & stop you safely. And they don’t weigh as much as discs!

Every Helix offers quick release front & rear wheels and a quick release saddle assembly to make  transport, storage, or locking up a snap.

The Jamis ATB Sport series saddle features front & rear protective guards to offer plenty of durability, style & comfort

SKU: 2017JamisHelix. Categories: , . Tags: , , , .



Frame 6061 aluminum main tubes, over-sized seat tube, zero-stack head tube, over-sized stays, replaceable derailleur hanger
Fork RST Gila 27.5″, coil spring, external preload adjustor, 28mm stanchions, aluminum lowers, 100mm travel
Headset Zero-stack internal cup threadless, 15mm cone spacer
Wheels Alex ACE-17 double-wall alloy rims, 36H, heavy-duty ATB hubs with QR, stainless spokes
Tires CST Patrol, 27.5 x 2.25”
Derailleurs Shimano TX-35 rear and TX50 front
Shift levers Shimano EF41, 3×7-speed
Chain KMC Z51, 7-speed
Cassette Shimano TZ31, 7-speed, 14-34T
Crankset Forged alloy crank, 42/34/24T, 170mm (14″/16″) 175mm (18″)
BB Set Sealed cartridge
Pedals ATB platform, hi-impact resin
Brakeset Alloy linear pull type with Shimano levers
Handlebar Jamis XC riser, 25.4 x 20mm rise x 620mm
Stem Jamis XC alloy threadless, 25.4 x 15º rise x 75mm (14”), 75mm (16″), 90mm (18″)
Grips Kraton
Seat Post Jamis alloy micro-adjust, 31.6 x 350mm (14″) 400mm (16″/18″)
Saddle Jamis ATB Sport Women’s, SL cover, protective front and rear guards
Sizes 14”, 16”, 18”
Color Aspen Sky or Ultraviolet

Additional information


Aspen Sky; Ultra Violet


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