Jamis Helix Sport
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Details
Building great recreational-level bikes that ride much like (and look a lot like) our hi-end bikes is a passion at Jamis. And no bikes showcase our commitment to do just that better than these. The Trail X and Helix chassis emphasizes all-day performance and the handling’s quick and sure without being overly darty. But make no mistake, if you want to throw down, they more than able to keep up with 27.5” wheels, precise shifting drivetrains and incredibly powerful disc or linear pull brakes.
Specs
| Frame | 6061 aluminum main tubes, over-sized seat tube, zero-stack head tube, over-sized stays, replaceable derailleur hanger |
|---|---|
| Fork | RST Gila ML 27.5", coil spring with mechanical lock out, external preload adjustor, 28mm stanchions, aluminum lowers, 100mm travel |
| Headset | Zero-stack internal cup threadless, 15mm cone spacer |
| Rims/Wheels | Alex TD26 27.5" rims, 32H |
| Tires | CST Patrol, 27.5 x 2.25” |
| Crankset | Shimano TY-301, 170mm (14"/16") 175mm (18") |
| Chainrings | 42/34/24T |
| Bottom Bracket | Sealed cartridge |
| Chain | KMC Z7, 8-speed |
| Front Derailleur | Shimano M190 |
| Rear Derailleur | Shimano TX800 |
| Rear Cogs | Shimano HG20, 8-speed, 12-32T |
| Shifters | Shimano EF500, EasyFire Plus, 3x8-speed |
| Handlebars | Jamis XC riser, 31.8 x 20mm rise x 660mm |
| Tape/Grips | Kraton |
| Stem | Jamis XC alloy threadless, 31.8 |
| Brakes | Tektro M280 mechanical disc, 160mm rotors and |
| Pedals | ATB platform, hi-impact resin |
| Saddle | Jamis ATB Sport Women's, SL cover, protective front and rear guards |
| Seat Post | Jamis alloy micro-adjust, 31.6 |
* Subject to change without notice.