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2017 GT

Helion Expert 9R

A 29″ aluminum frame full suspension crosscountry bike with upper mid-range components.
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Manufacturer Price

$3,200
FrameAluminum
SuspensionFull, 110 / 100mm
ForkFox Performance Float 32
ShockFox
Wheels29″ Aluminum
Drivetrain2 × 11
GroupsetSLX
BrakesShimano Deore Hydraulic Disc
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Insights
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

28 mph

Helion Expert 9R

27 mph

Similar Bikes

Highest gear

(descending)

Sizing
XS

5'1" – 5'6"

SM

5'4" – 5'9"

MD

5'7" – 6'0"

LG

5'10" – 6'3"

XL

6'0" – 6'5"

🐐 Estimated

Rider Fit Notes

None yet.

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Reviews
BikeRadar
GT Helion Carbon Expert review

Dec 2015 · Rob Weaver

An impressively capable frame, which outshines some of its components when pushed hard. Quite heavy though. Buy if you want something a little chunkier than most xc bikes, and are willing to make a few tweaks to maximise its potential

Highs
  • Gutsy, lively ride, impressively stiff frame

Lows
  • Frame can take more punishment than some of the kit

Read Review

Mountain Bike Action
Bike Test: GT Helion Carbon Pro

Apr 2015 · MBA Action

Bringing Back Fun Cross-Country

Read Review

Enduro Mountainbike Magazine
Back Issue | Group Test: GT Helion CRB Team Review

Dec 2014 · Christoph Bayer

Having presented new models in the 130-150mm suspension range last year, it was high time for GT to give its short-travel models a makeover. The result is the completely new GT Helion, which replaces the well-known Zaskar models. We had a chance to take a closer look at the newcomer in GT’s lineup. This Test […]

Read Review

Flow Mountain Bike
Trail Testing a Rocket: The GT Helion Carbon Pro

Nov 2014

Gone are the days where you needed loads of suspension travel to let you go bloody fast off road. A bike with top quality short-travel suspension, dialled geometry in a stiff and responsive frame is so incredibly capable of a fast ride. The GT Helion is one bike that knows its place: it’s not a …

Highs
  • Faster than a hardtail.

  • Fantastic rear suspension.

  • Holds momentum through singletrack like you've got a strong tailwind.

  • Climbs trails with rapid pace.

Lows
  • Non-tubeless.

  • The trade off for climbing speed, is a nervous descender.

  • We missed a dropper post at times.

Read Review

MTBR
GT announces all new Helion Carbon Pro, Force X and Sensor X for 2015

Jun 2014 · Gregg Kato

GT has a new XC bike called the Helion Carbon Pro that is targeted towards the aggressive cross country rider. Other new bikes for 2015 include the Force X and the Sensor X. - Mtbr.com

Read Review

Geometry
Specs
Build
Frame

6061-T6 Hydroformed Aluminum Frame, 110mm AOS Suspension System 1 1/8"-1 1/2" Integrated Head Tube, and 12x142mm Maxle Dropouts

Fork

Fox Performance 32 Float SC 29", 100mm Travel, 15QR x 110mm, Remote Lockout & Rebound Adjust

Travel100mm

Spring TypeAir

Shock

Fox Performance Elite Float Air Shock, w/ Rebound Adjust & Remote Lockout

Travel110mm

Bottom Bracket

Shimano

Headset

FSA Orbit C-40-ACB

Stem

All Terra, 1-1/8" Threadless, 6? Rise, 31.8mm Clamp, 80mm

Handlebar

All Terra AL6061 DB, 740mm, 0 Rise, 31.8mm Clamp

Saddle

WTB Silverado Race SL, Cromoly Rail

Seatpost

Race Face Ride, 31.6x375mm

TypeRigid

Pedals

N/A

Grips

GT Statement Single Lock-on Grips

Groupset
Rear Derailleur

SLX Shadow Plus GS

Front Derailleur

Shimano SLX

Crank

Race Face Ride, 36/26T, 2x11

Shifters

Shimano SLX, Rapid Fire

Cassette

Sunrace 11-Speed, 11-42T

Chain

KMC X11

Brakes

Shimano Deore M506 Hydraulic Disc 180/180mm Centerlock Rotor

TypeShimano Deore Hydraulic Disc

Brake Levers

Shimano Deore

Wheels
Rims

WTB STP i23 29", Tubeless Compatible, 32H

Front Hub

(F) Shimano SLX, HB-M618-B, Centerlock Disc, 15x110mm Thru Axle, (R)SLX Centerlock 12x142

Rear Hub

(F) Shimano SLX, HB-M618-B, Centerlock Disc, 15x110mm Thru Axle, (R)SLX Centerlock 12x142

Tires

(F) Schwalbe Racing Ralph Snakeskin 29x2.25" Folding TL-Easy, (R) 29x2.0" Folding TL-Easy

Rider Notes
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First added June 29

Last updated June 29

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