Trek Fuel EX 8

2011 MountainTrail

Travel: 120 / 120 mm Fork / rear shock
Wheels: 26″
Drivetrain: 3 × 10 24–42t / 11–36t
Gear range: 573%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

15.5" 154–169
17.5" 166–180
18.5" 176–188
19.5" 177–189
21.5" 186–196

Components

13 of 14 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

Alpha Red Aluminum w/ABP Convert, Full Floater, E2 tapered head tube, magnesium EVO Link, oversized pivot bearings, replaceable derailleur hanger, 120mm travel Not identified

Drivetrain

5 parts

Cassette
- Shimano CS-HG81-10
CS-HG81-10
Crankset
- Shimano FC-M552 42/32/24t
FC-M552
Front derailleur
- Shimano SLX
Rear derailleur
- Shimano SLX
Shifters
- Shimano SLX

Brakes

1 part

Brakes
- Avid Elixir 5

Wheels and tires

2 parts

Cockpit and contact points

6 parts

Sizes and geometry

5 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: Aluminum

Suspension

Suspension configuration: Full suspension
Front travel: 120 mm
Rear travel: 120 mm

Drivetrain

Derived by Bikelake

Front chainrings: 3
Smallest chainring: 24
Largest chainring: 42
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 36
Lowest gear: 17.3 in
Highest gear: 99.3 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire width: 2.2″
Wheel material: Aluminum
Wheel size: 26″

Technical analysis

4 measures

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

Front travel

120 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2011
Sample: 56 bicycles with this information
Coverage: 100.0% of the class

Rear travel

120 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2011
Sample: 44 bicycles with this information
Coverage: 78.5% of the class

Lowest gear

17.3 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2011
Sample: 46 bicycles with this information
Coverage: 82.1% of the class

Highest gear

99.3 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2011
Sample: 46 bicycles with this information
Coverage: 82.1% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.6 km/h
Highest gear: 38.0 km/h

Total gear range 573%

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: 17.3–99.3 gear inches
Class reference (p10–p90): 16.8–104.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2011
Lowest gear: 46 bicycles with this information, 82.1% of the class
Highest gear: 46 bicycles with this information, 82.1% 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 2011 builds
Specification	This bicycle Trek Fuel EX 8	Trek Fuel EX 5	Trek Fuel EX 5 WSD	Trek Fuel EX 6	Trek Fuel EX 6 WSD	Trek Fuel EX 7
Frame
Intended fit	Unisex	Unisex	womens	Unisex	womens	Unisex
Drivetrain
Smallest chainring	24	22	22	22	22	22
Largest chainring	42	44	44	44	44	44
Rear sprockets	10	9	9	9	9	10
Smallest sprocket	11	11	11	11	11	12
Largest sprocket	36	34	34	34	34	36
Lowest gear	17.3 in	16.8 in	16.8 in	16.8 in	16.8 in	15.9 in
Highest gear	99.3 in	104.0 in	104.0 in	104.0 in	104.0 in	95.3 in

Changes since 2010
Specification	2010 Trek Fuel EX 8	This bicycle Trek Fuel EX 8
Drivetrain
Smallest chainring	22	24
Largest chainring	44	42
Rear sprockets	9	10
Largest sprocket	32	36
Lowest gear	17.9 in	17.3 in
Highest gear	104.0 in	99.3 in
Other specifications
Bottom bracket standard	BSA	Not informed