Trek Fuel EX 8 Gen 5

Name: Trek Fuel EX 8 Gen 5
Brand: Trek

2023 MountainTrail Manufacturer page

Trek Fuel EX 8 Gen 5, color Rage Red to Dnister Black Fade

Price: Not published

Prices shown first for United States
Europe: €3,799 Last known price
Travel: 140 / 130 mm Fork / rear shock
Wheels: 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

17.5"
17.5"
18.5"
18.5"
21.5"
21.5"

The manufacturer did not publish rider heights for these sizes.

Components

19 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

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

6 parts

Brakes

2 parts

Brakes
- Shimano BR-MT420
BR-MT420BL-M4100
Disc rotors
- Shimano SM-RT66-M
SM-RT66

Wheels and tires

5 parts

Front hub
- Bontrager
Rear hub
- Bontrager
Rims
- Bontrager
Spokes

14 g stainless steel, black Not identified
Tires
- Bontrager

Cockpit and contact points

6 parts

Grips
- Bontrager
Handlebar
- Bontrager
Headset

Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom Not identified
Saddle
- Bontrager
Seatpost
- Bontrager
Stem
- Bontrager

Sizes and geometry

6 sizes Open in the geometry plotter

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

Size 18.5"

Table

Reach 460mm

Stack 609mm

Wheelbase 1195mm

Head angle 66.5°

Seat angle 75.5°

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 6 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	445	440	460	455	500	495
Stackmm	605	609	609	613	623	627
Top tube lengthmm	602	603	618	619	662	663
Seat tube lengthmm	420	420	435	435	500	500
Head tube lengthmm	100	100	105	105	120	120
Head tube angle	66.5°	66°	66.5°	66°	66.5°	66°
Seat tube angle	75.5°	75°	75.5°	75°	75.5°	75°
Chainstay lengthmm	436	437	436	437	436	437
Wheelbasemm	1178	1179	1195	1196	1241	1242
Front centermm	743	744	760	761	806	807
Bottom bracket dropmm	28	34	28	34	27	34
Bottom bracket heightmm	346	340	346	340	347	340
Standover heightmm	748	742	751	745	768	762
Fork rakemm	43	43	43	43	43	43
Trailmm	116	119	116	119	116	119
Stack/reach ratio	1.36	1.38	1.32	1.35	1.25	1.27

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: 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: 2023
Sample: 2,192 bicycles with this information
Coverage: 97.5% of the class

Shifting

Mechanical

359 of 2,248 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2023
Sample: 2,248 bicycles with this information
Coverage: 100.0% 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 2023 builds

Differences across 2023 builds
Specification	This bicycle Trek Fuel EX 8 Gen 5	Trek Fuel EX 5 Gen 5	Trek Fuel EX 7 Gen 5	Trek Fuel EX 7 Gen 6	Trek Fuel EX 8 Gen 6	Trek Fuel EX 9.7 Gen 5
Frame
Frame material	Aluminum	Aluminum	Aluminum	Aluminum	Aluminum	Carbon
Bicycle weight	13.86 kg	15.7 kg	14.48 kg	15.97 kg	15.65 kg	13.65 kg
Fork material	Not informed	Not informed	Not informed	Not informed	Aluminum	Not informed
Suspension
Front travel	140 mm	140 mm	140 mm	150 mm	140 mm	140 mm
Rear travel	130 mm	130 mm	130 mm	140 mm	140 mm	130 mm
Drivetrain
Smallest sprocket	10	10	11	10	10	10
Largest sprocket	51	51	50	51	51	51
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	17.4 in	17.1 in	17.1 in	17.1 in
Highest gear	Not informed	87.0 in	79.1 in	87.0 in	87.0 in	87.0 in
Cockpit
Derailleur hanger	Not informed	Not informed	Not informed	UDH	UDH	Not informed
Other specifications
Bottom bracket standard	BB86/BB92	BB86/BB92	BB86/BB92	BSA	BSA	BB86/BB92
Tire clearance	Maximum tire width: 2.6″	Maximum tire width: 2.6″	Maximum tire width: 2.6″	Maximum tire width: 2.5″	Maximum tire width: 2.5″	Maximum tire width: 2.6″
Tire width	2.5″	2.6″	2.6″	2.5″	2.5″	2.5″
Wheel size	29″	27.5″ / 29″	29″	27.5″ / 29″	27.5″ / 29″	29″