Quiver

Trek2026

2026 Trek Fuel EX 9.8 Gen 7

Trail

The 2026 Trek Fuel EX 9.8 Gen 7 sits at the aggressive end of the range for a trail bike, with a slacker head angle and a shorter rear center. Reach 431 to 530 mm, stack 610 to 665 mm. The Fuel EX 9.8 Eagle 90 Gen 7 build comes with SRAM Eagle 90 Transmission shifting and Bontrager Line Comp 30 wheels.

Source: trekbikes.com. Checked .

Key facts

Brand
Trek
Model
Fuel EX
Model year
2026
Type
Trail
Geometry labels
S, M, L, XL, and XXL
Drivetrain
Varies by build
Rear shock
Varies by build
Geometry
Complete for every size
Source
trekbikes.com
Checked

Geometry by size

2026 Trek Fuel EX 9.8 Gen 7 geometry drawing, size LSide view of the 2026 Trek Fuel EX 9.8 Gen 7 frame in size L, drawn to scale from its published geometry, with lettered dimension lines.J 1262A 485mmB 638mmJ 1262mmH 442mmK 35mmC 617mmD 64.5°E 77.4°F 125mmG 420mmN 339mmL 749mm
Geometry drawing, size L, to scale.
2026 Trek Fuel EX 9.8 Gen 7 geometry by size
MeasurementSMLXLXXL
Reach(mm)431460485510530
Stack(mm)610624638651665
Head tube angle(°)64.664.564.564.564.5
Seat tube angle(°)78.778.377.476.976.4
Effective top tube(mm)548583617651680
Chainstay length(mm)437437442447452
Wheelbase(mm)11871225126212981330
BB drop(mm)3435353535
BB height(mm)340339339339339
Standover(mm)741742749755764
Seat tube length(mm)370400420455475
Head tube length(mm)95110125140155

Stock build

Fuel EX 9.8 Eagle 90 Gen 716 parts

Frame

Trek Fuel EX
Frame

Suspension

RockShox Lyrik Ultimate
ForkFrom the manufacturer: Wheel size 29
RockShox Deluxe Ultimate
Rear shock

Drivetrain

SRAM Eagle 90 Transmission
ShifterFrom the manufacturer: Speeds 12From the manufacturer: Actuation type Mechanical
SRAM Eagle 90 Transmission
DerailleurFrom the manufacturer: Speeds 12From the manufacturer: Maximum cog 52 tFrom the manufacturer: Clutch Replaceable Skid PlatesFrom the manufacturer: Cage length long
SRAM GX Eagle Transmission
CassetteFrom the manufacturer: Speeds 12From the manufacturer: Freehub body SRAM XD
SRAM Eagle 90 Transmission
Crankset
SRAM Eagle 90 Transmission
ChainringFrom the manufacturer: Teeth 30 t

Wheels & Tires

Bontrager Line Comp 30
WheelsetFrom the manufacturer: Internal rim width 30mmFrom the manufacturer: Spoke count 28
Maxxis Minion DHR II
Tire

Brakes

SRAM Maven Bronze
BrakeFrom the manufacturer: Piston count 4From the manufacturer: Fluid type MineralFrom the manufacturer: Lever adjustments Tool-free Reach

Cockpit

Race Face ERA
HandlebarClamp diameter 35mmWidth ~780mmBacksweep 8°From the manufacturer: Upsweep 5°
Bontrager Elite
StemFrom the manufacturer: Material Aluminum
Trek Line Elite
Grips

Seatpost & Saddle

Bontrager Line
Dropper post
Bontrager Verse
Saddle

Keep your Fuel EX 9.8 Eagle 90 Gen 7 in Quiver

Start from this build's stock parts, then record your upgrades. Review it before adding it to your garage.

Free on App StoreFree on Google PlayFree for your first bike, on iPhone and Android.

Already have Quiver? Open this build

Fuel EX 9.8 XT Di2 Gen 715 parts

Suspension

Fox 36 Factory
ForkFrom the manufacturer: Axle to crown 567mm
Fox Float Factory
Rear shockFrom the manufacturer: Tune CL/RM/CMMFrom the manufacturer: Weight 310 g

Drivetrain

Shimano XT M8250
Derailleur

Wheels & Tires

WheelsetInternal rim width 29mmFrom the manufacturer: Rim material AluminumSpoke count 28From the manufacturer: Tubeless ready

Brakes

Shimano SM-RT86
Rotor

Cockpit

Race Face ERA
HandlebarClamp diameter 35mmWidth ~780mmBacksweep 8°From the manufacturer: Upsweep 5°
GripsFrom the manufacturer: Grip diameter 32mm

Seatpost & Saddle

Keep your Fuel EX 9.8 XT Di2 Gen 7 in Quiver

Start from this build's stock parts, then record your upgrades. Review it before adding it to your garage.

Free on App StoreFree on Google PlayFree for your first bike, on iPhone and Android.

Already have Quiver? Open this build

Fuel EX 9.8 XT Gen 715 parts

Suspension

Fox 36 Factory
ForkFrom the manufacturer: Axle to crown 567mm
Fox Float Factory
Rear shockFrom the manufacturer: Tune CL/RM/CMMFrom the manufacturer: Weight 310 g

Drivetrain

Shimano XT M8100
DerailleurFrom the manufacturer: Cage length long

Wheels & Tires

WheelsetInternal rim width 29mmFrom the manufacturer: Rim material AluminumSpoke count 28From the manufacturer: Tubeless ready

Brakes

Shimano SM-RT86
Rotor

Cockpit

Race Face ERA
HandlebarClamp diameter 35mmWidth ~780mmBacksweep 8°From the manufacturer: Upsweep 5°
GripsFrom the manufacturer: Grip diameter 32mm

Seatpost & Saddle

Keep your Fuel EX 9.8 XT Gen 7 in Quiver

Start from this build's stock parts, then record your upgrades. Review it before adding it to your garage.

Free on App StoreFree on Google PlayFree for your first bike, on iPhone and Android.

Already have Quiver? Open this build

Sources agreeManufacturer

Quick answers

Which size or configuration labels have geometry for the 2026 Trek Fuel EX 9.8 Gen 7?
Geometry is listed for S, M, L, XL, and XXL.
What are the reach and stack of the 2026 Trek Fuel EX 9.8 Gen 7 in size L?
In size L, reach is 485 mm and stack is 638 mm.
What is the head tube angle of the 2026 Trek Fuel EX 9.8 Gen 7?
The head tube angle is 64.5 degrees in size L.
What does the 2026 Trek Fuel EX 9.8 Eagle 90 Gen 7 ship with?
The stock build includes Trek Fuel EX, RockShox Lyrik Ultimate, SRAM Eagle 90 Transmission, and Bontrager Line Comp 30.
Which years of the Trek Fuel EX are on Quiver?
Quiver has the Trek Fuel EX for 2026, 2027, 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, and 2005.

Know what is on every bike.

Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.

Explore the app
A Transition Relay build sheet: frame, fork, shock and drivetrainThe Relay’s ride photo galleryThe Relay’s ride spectrum and 2D frame geometryThe garage: five bikes and 99 recorded partsA Specialized Tarmac SL8 road build sheet

Quiver keeps track of the bikes you own.

Free on App StoreFree on Google Play