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Jamis Helix A2

Jamis Helix A2
  • Color: Sugar Mint
  • Color: Gloss Black
Please select options

Details

READY FOR THE TRAIL
Building great recreational-level bikes that ride much like our high-end bikes is a passion at Jamis. No bikes showcase our commitment to do just that better than these. The Helix chassis emphasizes all-day performance with quick, but not overly twitchy handling attributes. Make no mistake though, if you want to throw down they're more than able to keep up.

BUILT TO LAST
Because it's much easier and much less expensive to replace a derailleur hanger than it is to repair or replace a frame, every Helix frame offers a replaceable derailleur hanger designed to yield in a crash before the frame does.

- 6061 aluminum frame
- SR Suntour XCE 28 DS 27.5", coil spring, external preload adjustor
- Alex TD26 27.5" rims, 32H, alloy disc hubs
- Shimano, 8-speed drivetrain
- Sealed cartridge bottom bracket
- Shimano MT200 hydraulic disc brakes
- Jamis XC alloy handlebar & stem
- Jamis ATB Sport saddle

Geometry

Geometry Chart:
TT EFFECTIVE
Inch / mm
HT ANGLEST ANGLECHAINSTAY
Inch / mm
WHEELBASE
Inch / mm
BB DROP
Inch / mm
HEADTUBE
Inch / mm
STANDOVER
Inch / mm
14? 21.2 / 540 70° 72.5° 17.1 / 435 41 / 1029 1.8 / 46 4.1 / 105 26.3 / 668
16? 22.1 / 560 70° 72.5° 17.1 / 435 41 / 1050 1.8 / 46 4.3 / 110 27.7 / 704
18? 22.9 / 580 70° 72.5° 17.1 / 435 42 / 1070 1.8 / 46 4.7 / 120 28.9 / 731

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 adjustor, 28mm stanchions, aluminum lowers, 100mm travel
Wheels Alex TD26 27.5" double wall rims, 32H, alloy disc hubs, 14G black electroplated spokes
Tires CST Patrol, 27.5 x 2.25"
Bottom Bracket Sealed cartridge
Crankset Forged Alloy, 36/22T
Shifters Shimano EF505, 2×8-speed
Front Derailleur Altus
Rear Derailleur Shimano Tourney
Cassette/Freewheel Shimano HG31, 8-speed, 11-32T
Chain KMC Z8.3, 8-speed
Brakes Shimano MT200 hydraulic disc, Shimano RT26 160mm rotors
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 75mm (14"/16"), 90mm (18")
Headset Zero-stack internal cup, 8mm cone spacer
Seatpost Jamis alloy micro-adjust, 31.6 x 350mm (14") 400mm (16"/18")
Saddle Jamis ATB Sport Women's
Pedals MTB platform, hi-impact resin

* Subject to change without notice.

Part Numbers

Option UPC MPN
Sugar Mint / 14-inch 845436085722 03-3763MN
Sugar Mint / 16-inch 845436085746 03-3765MN
Sugar Mint / 18-inch 845436085760 03-3767MN
Gloss Black / 14-inch 845436085715 03-3762BK
Gloss Black / 16-inch 845436085739 03-3764BK
Gloss Black / 18-inch 845436085753 03-3766BK

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