GT Helion Carbon Expert 9R

Name: GT Helion Carbon Expert 9R
Brand: GT

2017 MountainCross-country

Last known price: $4,260

Prices shown first for United States
Travel: 100 / 110 mm Fork / rear shock
Wheels: 29″
Drivetrain: 2 × 11 26–36t / 11–42t
Gear range: 529%
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 158–171
MD 168–180
LG 178–189
XL 186–199

Components

21 of 22 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

FOC Ultra Carbon Front w/ 6069 Hydroformed Alloy Rear, 110mm AOS Suspension System 1 1/8?-1 1/2? Integrated Head Tube, and 12x142mm Maxle Dropouts Not identified

Suspension

2 parts

Drivetrain

7 parts

Bottom bracket
- Race Face
Cassette
- Shimano SLX CS-M7000 11–42t
CS-M7000
Chain
- KMC X11 11 speeds
Crankset
- Race Face Ride 36/26t
Front derailleur
- Shimano SLX
Rear derailleur
- Shimano Deore XT
Shifters
- Shimano SLX

Brakes

2 parts

Wheels and tires

4 parts

Cockpit and contact points

7 parts

Sizes and geometry

4 sizes

Enter your height to highlight matching ranges.

Size Reported by the manufacturer

Geometry not published

The manufacturer lists these sizes without frame measurements, so there is no drawing or geometry table.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon

Suspension

Suspension configuration: Full suspension
Front travel: 100 mm
Rear travel: 110 mm

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 26
Largest chainring: 36
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 42
Lowest gear: 18.0 in
Highest gear: 94.9 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Air
Tire width: 2.25″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

3 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Front travel

100 mm

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2017
Sample: 555 bicycles with this information
Coverage: 87.8% of the class

Lowest gear

18.0 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2017
Sample: 607 bicycles with this information
Coverage: 96.0% of the class

Highest gear

94.9 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2017
Sample: 607 bicycles with this information
Coverage: 96.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.9 km/h
Highest gear: 36.4 km/h

Total gear range 529%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 18.0–94.9 gear inches
Class reference (p10–p90): 17.0–110.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Cross-country Model year: 2017
Lowest gear: 607 bicycles with this information, 96.0% of the class
Highest gear: 607 bicycles with this information, 96.0% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2017 builds

Differences across 2017 builds
Specification	This bicycle GT Helion Carbon Expert 9R	GT Helion Elite GTw	GT Helion Expert 9R
Frame
Intended fit	Unisex	womens	Unisex
Frame material	Carbon	Aluminum	Aluminum
Suspension
Front travel	100 mm	120 mm	100 mm
Drivetrain
Smallest chainring	26	24	26
Largest chainring	36	38	36
Rear sprockets	11	10	11
Largest sprocket	42	36	42
Lowest gear	18.0 in	18.3 in	18.0 in
Highest gear	94.9 in	95.0 in	94.9 in
Other specifications
Tire width	2.25″	2.35″	2.25″
Wheel size	29″	27.5″	29″