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  • (310) 862-5001 - Playa Vista (424) 744-8148 - Santa Monica

Jamis: Helix Comp - 2017

Jamis

$629.00
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Product Description

Jamis: Helix Comp - 2017

HELIX SERIES

Building great recreational-level bikes for both men and women that ride much like our hi-end bikes is a passion at Jamis. And no bikes showcase our commitment to do just that better than these. The 27.5” wheel size is not a compromise between 26” or 29”: it’s the best of both worlds. The Helix chassis emphasizes all-day performance and quick handling without being overly darty. Low standover, short reach stems and brakes, wide range gearing and gender specific saddles are just some of the features of the highly capable Helix line-up.

 

FRAME MATERIALS

Lightweight and strong 6061 series aluminum tubing, featuring over-sized & tapered tubing for increased frame stiffness.

  

PEDALING PLATFORM

The aluminum frame of the Trail X and Helix is beefed up to include a larger 34.9mm seat tube, which allows us to spec an over-sized 31.6mm seat post. The larger diameter post flexes less, providing a firmer pedaling platform.

  

TOP TUBE CABLE ROUTING

Running the cables up under the top tube keeps cables and housing out of the muck for more precise and reliable shifting performance.

  

ZERO STACK INTERNAL HEADSET

A Zero Stack internal headset places both the cups and bearings inside the head tube instead of outside. This reduces the total stack height (including the head tube), which is beneficial on larger wheeled bikes. The larger diameter head tube also provides a larger weld interface at the critical head/top/down tube junction.

  

DUAL WATER BOTTLE MOUNTS

Most of our Trail X sizes offer two water bottle mounts located inside the main frame. This provides excellent hydration capacity in an easily accessible position.

  

REPLACEABLE DERAILLEUR HANGER

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

 

FULL SHIMANO SHIFTING SYSTEM

Fully integrated shifting systems offer the most precise and reliable performance. That’s why our Trail X and Helix models all offer Shimano shifters, Shimano front and rear derailleurs and Shimano cassettes or freewheels.

 

ALEX TD26 DISC-SPECIFIC RIMS

Disc hubs twist during braking. This twisting increases “pull” load on the nipples in the spoke bed. The Alex TD26 spoke bed on the rims specified on Expert, Comp and Sport is cleverly reinforced to resist disc brake torque and prevent spokes & nipples from shearing.

 

UPGRADES FROM HELIX SPORT

RST Blaze TNL fork

Tektro hydraulic disc brakes

  

UPGRADES / CHANGES FROM 2016

CST Patrol 2.25" tires 

Tektro M285 brakeset 

Shimano TY-501 crankset

 

Specifications

Frame

6061 aluminum main tubes, over-sized seat tube, zero-stack head tube, over-sized stays, replaceable derailleur hanger

Fork

RST Blaze TNL 27.5", coil spring with Turn-n-Lock hydraulic lock out, external preload adjustor, 30mm stanchions, aluminum lowers, 100mm travel

Headset

Zero-stack internal cup threadless, 15mm cone spacer

Wheels

Alex TD26 27.5" rims, 32H, alloy 6-bolt disc hubs, stainless spokes

Tires

CST Patrol, 27.5 x 2.25”

Derailleurs

Shimano Acera rear and M190 front

Shift levers

Shimano M310, 3x8-speed

Chain

KMC Z7, 8-speed

Cassette

Shimano HG20, 8-speed, 11-32T

Crankset

Shimano TY501, 42/34/24T, 170mm (14"/16") 175mm (18")

BB Set

Sealed cartridge

Pedals

ATB platform, hi-impact resin

Brakeset

Tektro M286 hydraulic disc, 160mm rotors

Handlebar

Jamis XC riser, 31.8 x 20mm rise x 660mm

Stem

Jamis XC alloy threadless, 31.8 x 10º rise x 70mm (14”), 70mm (16"), 90mm (18")

Grips

Kraton

Seat Post

Jamis alloy micro-adjust, 31.6 x 350mm (14") 400mm (16"/18")

Saddle

Jamis ATB Sport Women's, SL cover, protective front and rear guards

Sizes

14”, 16”, 18”

Color

Gloss Black

Weight

31.25 lbs

 

Fit & Sizing

nemisisracefit&sizing.jpg

  

SIZE

TOP EFFECTIVE

HEAD ANGLE

SEAT ANGLE

CHAIN STAY

WHEEL BASE

BB DROP

HEAD TUBE

STANDOVER

14

21.2 / 540

70˚

72.5˚

17.1 / 435

40.5 / 1029

1.8 / 46

4.1 / 105

26.3 / 668

16

22.1 / 560

70˚

72.5˚

17.1 / 435

41.3 / 1050

1.8 / 46

4.3 / 110

27.7 / 704

18

22.9 / 580

70˚

72.5˚

17.1 / 435

42.1 / 1070

1.8 / 46

4.7 / 120

28.9 / 731

 

  

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Questions & Phone Orders

Questions & Phone Orders

Playa Vista: (310) 862-5001
Santa Monica: (424) 744-8148

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