Trek Fuel EX 8

Name: Trek Fuel EX 8
Brand: Trek

2021 MountainTrail Manufacturer page

Trek Fuel EX 8, color Alpine Blue / Deep Dark Blue

Price: Not published

Prices shown first for United States
United Kingdom: £3,450 Last known price
Travel: 140 / 130 mm Fork / rear shock
Wheels: 27.5″, 29″
Drivetrain: 12 10–51t
Gear range: 510%
Weight: 13.86 kg 30.6 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

XS High
XS Low
SM High
SM Low
SM High
SM Low
MD High
MD Low
MD/LG High
MD/LG Low
LG High
LG Low
XL High
XL Low
XXL High
XXL Low

The manufacturer did not publish rider heights for these sizes.

Components

19 of 20 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 Platinum Aluminium, tapered head tube, Knock Block, Control Freak internal routing, downtube guard, ISCG 05, magnesium rocker link, Mino Link, ABP, Boost148, 130 mm travel Not identified

Suspension

2 parts

Drivetrain

5 parts

Brakes

2 parts

Brakes
- Shimano
Disc rotors
- Shimano SM-RT66
SM-RT66

Wheels and tires

5 parts

Cockpit and contact points

5 parts

Sizes and geometry

16 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size MD Low

Table

Reach 440mm

Stack 609mm

Wheelbase 1179mm

Head angle 66.0°

Seat angle 75.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 29″ wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 16 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	400	395	420	415	420	415	445	440	460	455	475	470	500	495	520	515
Stackmm	559	563	568	572	605	609	605	609	609	613	609	613	623	627	641	645
Top tube lengthmm	545	546	567	568	577	578	602	603	618	619	633	634	662	663	687	688
Seat tube lengthmm	355	356	395	395	395	395	420	420	435	435	450	450	500	500	540	540
Head tube lengthmm	90	90	100	100	100	100	100	100	105	105	105	105	120	120	140	140
Head tube angle	66.5°	66°	66.5°	66°	66.5°	66°	66.5°	66°	66.5°	66°	66.5°	66°	66.5°	66°	66.5°	66°
Seat tube angle	75.5°	75°	75.5°	75°	75.5°	75°	75.5°	75°	75.5°	75°	75.5°	75°	75.5°	75°	75.5°	75°
Chainstay lengthmm	436	437	436	437	436	437	436	437	436	437	436	437	436	437	436	437
Wheelbasemm	1119	1120	1143	1144	1153	1154	1178	1179	1195	1196	1210	1211	1241	1242	1269	1270
Front centermm	683	684	707	708	718	719	743	744	760	761	775	776	806	807	834	835
Bottom bracket dropmm	14	21	14	21	28	34	28	34	28	34	27	34	27	34	27	34
Bottom bracket heightmm	341	335	341	335	346	340	346	340	346	340	346	340	346	340	346	340
Standover heightmm	700	695	707	700	707	701	748	742	751	745	756	750	768	762	806	800
Fork rakemm	42	43	42	43	43	43	43	43	43	43	43	43	43	43	43	43
Trailmm	106	111	106	111	115	119	116	119	116	119	116	119	116	119	116	119
Stack/reach ratio	1.40	1.43	1.35	1.38	1.44	1.47	1.36	1.38	1.32	1.35	1.28	1.30	1.25	1.27	1.23	1.25

Not published by the manufacturer: Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Bicycle weight: 13.86 kg

30.6 lb
Weight limit: 136 kg

299.8 lb

Suspension

Suspension configuration: Full suspension
Front travel: 140 mm
Rear travel: 130 mm

Drivetrain

Derived by Bikelake

Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 51

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BB86/BB92
Fork spring: Air
Tire clearance: Maximum tire width: 2.6″
Tire width: 2.5″
Wheel material: Aluminum
Wheel size: 27.5″, 29″

Technical analysis

2 measures

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

Front travel

140 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2021
Sample: 1,325 bicycles with this information
Coverage: 98.1% of the class

Shifting

Mechanical

53 of 1,347 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2021
Sample: 1,347 bicycles with this information
Coverage: 99.7% 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 2021 builds
Specification	This bicycle Trek Fuel EX 8	Trek Fuel EX 5	Trek Fuel EX 5 Deore	Trek Fuel EX 7	Trek Fuel EX 7 NX	Trek Fuel EX 8 GX
Frame
Bicycle weight	13.86 kg	15.7 kg	15.7 kg	14.11 kg	14.48 kg	13.78 kg
Drivetrain
Smallest sprocket	10	10	10	11	11	10
Largest sprocket	51	51	51	50	50	52
Front chainrings	Not informed	1	1	1	1	1
Smallest chainring	Not informed	30	30	30	30	30
Largest chainring	Not informed	30	30	30	30	30
Lowest gear	Not informed	17.1 in	17.1 in	17.4 in	17.4 in	16.7 in
Highest gear	Not informed	87.0 in	87.0 in	79.1 in	79.1 in	87.0 in
Other specifications
Tire width	2.5″	2.6″	2.6″	2.6″	2.6″	2.6″
Wheel size	27.5″ / 29″	27.5″ / 29″	27.5″ / 29″	27.5″ / 29″	27.5″ / 29″	29″

Changes since 2020
Specification	2020 Trek Fuel EX 8	This bicycle Trek Fuel EX 8
Frame
Bicycle weight	13.78 kg	13.86 kg
Drivetrain
Front chainrings	1	Not informed
Smallest chainring	30	Not informed
Largest chainring	30	Not informed
Largest sprocket	50	51
Lowest gear	17.4 in	Not informed
Highest gear	87.0 in	Not informed
Other specifications
Tire width	2.6″	2.5″