Jamis Helix A2
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
| TT EFFECTIVE Inch / mm | HT ANGLE | ST ANGLE | CHAINSTAY 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 |