Jamis Helix A2
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Details
Building great recreational-level bikes that ride much like (and look a lot like) their high-end bikes is a passion at Jamis. And no bikes showcase that commitment better than the Helix A2. The Helix chassis emphasizes all-day performance with handling that’s quick and sure without being overly darty. Its suspension fork and 21-speed drivetrain make it trail-ready and quite capable, while disc brakes help ensure safety and control wherever you ride, and in all weather. You don’t have to give up comfort for capability, though, and the Helix A2 provides both, offering a women-specific saddle, riser bar, and soft, Kraton grips, all with a heads-up geometry that keeps you riding comfortably all day long.
Specs
| Frame | 6061 aluminum main tubes, over-sized seat tube, zero-stack head tube, over-sized stays, replaceable derailleur hanger |
|---|---|
| Fork | SR Suntour XCE 28 DS 27.5", coil spring, external preload adjuster, 28mm stanchions, aluminum lowers, 100mm travel |
| Headset | Zero-stack internal cup threadless, 15mm cone spacer |
| Rims/Wheels | Alex TD26 27.5" rims, 32H |
| Hubs | Alloy 6-bolt disc |
| Spokes | 14G nickel-plated |
| Tires | CST Patrol, 27.5 x 2.25" |
| Crankset | Forged alloy |
| Chainrings | 42/34/24 |
| Bottom Bracket | Sealed cartridge |
| Chain | KMC Z51, 7-speed |
| Front Derailleur | TY500 |
| Rear Derailleur | Shimano TY300 |
| Cassette/Rear Cogs | Shimano TZ500, 7-speed, 14-34T |
| Shifters | Shimano EF41, 3x7-speed |
| Handlebars | Jamis XC alloy riser, 31.8 x 20mm rise x 680mm |
| Tape/Grips | Kraton |
| Stem | Jamis XC alloy threadless, 31.8 x 10° rise x 70mm (14"/16"), 90mm (18") |
| Brake Levers | Shimano |
| Brakes | Tektro M280 mechanical disc, 160mm rotors |
| Pedals | MTB 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 x 350mm (14") 400mm (16"/18") |
* Subject to change without notice.