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Jamis Helix A1

Jamis Helix A1
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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 A1. The Helix chassis emphasizes all-day performance with handling that’s quick and sure without being overly darty. Its suspension fork and 24-speed drivetrain make it trail-ready and quite capable, while powerful hydraulic 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 A1 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 XCT 30 HLO 27.5", coil spring, hydraulic speed lock out adjust, external preload adjustor, 30mm 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 Shimano TY-301
Chainrings 42/34/24
Bottom Bracket Sealed cartridge
Chain KMC Z7, 8-speed
Front Derailleur TY700
Rear Derailleur Shimano TX800
Cassette/Rear Cogs Shimano HG200, 8-speed, 12-32T
Shifters Shimano M310, 3x8-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 Tektro
Brakes Tektro M275 hydraulic 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.

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