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2026 Trek

Fuel EX 8 Gen 7

A 29″ / 27.5″ aluminum frame full suspension trail bike with high-end components.

Manufacturer Price

$3,999
Weight37.2 lbs  
FrameAluminum
SuspensionFull, 145 / 150mm
ForkFox Rhythm Float 36
ShockFox Float X Performance
Wheels29″ / 27.5″ Aluminum
Drivetrain1 × 12
GroupsetEagle 70 Transmission
BrakesSRAM DB8 Hydraulic Disc
SeatpostDropper
View on trekbikes.comLearn about Trek
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Fuel EX 8 Gen 7
Other Trail bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

26 mph

Fuel EX 8 Gen 7

26 mph

Similar Bikes

Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Sizing
15.5"

5'1" – 5'6"

17.5"

5'4" – 5'11"

19.5"

5'9" – 6'3"

21.5"

6'1" – 6'5"

Rider Fit Notes
  • 5'10", size 19.5", Just right
Price History
Reviews
99 Spokes
Is The All-New Trek Fuel 3 Bikes in 1? | Weekly Rewind Ep. 33

Aug 2025

Welcome back to The Weekly Rewind presented by 99 Spokes, where we catch you up on all the hottest cycling news from the ...

Watch Review

Pinkbike
1 Frame, 3 Setups: We Timed Every Build to Find the Fastest | Trek Fuel EX vs MX vs LX

Mar 2026 · Pinkbike Originals

At the top end of the range is the Fuel LX with 170 millimeters of fork travel and 160 in the rear, returning to a full-29-inch wheel format.

Highs
  • Single frame can be configured into three distinct models with multiple travel and geometry options.

  • In-frame storage available across all models.

  • Choice between carbon or aluminum construction.

  • Compatibility with angle-adjust headsets.

Read Review

Enduro Mountainbike Magazine
Trek Fuel LX 9.8 XT Di2 – In Our Big 2026 Enduro Comparison Test

Feb 2026 · Lars Engmann

Is the Trek Fuel LX 9.8 XT Di2 the Best Enduro Bike for the 2026 Season? We Put It Through the Wringer to Find Out.

Highs
  • Variable frame platform

  • Highly capable suspension

  • Comfortable riding position

  • Agile handling

Lows
  • Needs better rider integration

  • Inconsistent spec

  • Drivetrain rattles on the descents

  • Restless at high speed

Read Review

Freehub
Adaptable performance. | Trek Fuel+ Gen 2

Jan 2026

When Trek launched the all-new Fuel line last summer, I was eager to spend time on the Fuel LX, MX, and MLX configurations. I’ve spilled a lot of words about that bike here, here, and here, and it’s safe to say I’m fairly smitten with it. But Trek wasn’t content to just release perhaps the most adaptable trail bike of the year. They simultaneously announced a corresponding “+” line that takes the same geometry and features and slaps on TQ’s new HPR 60 motor and a 580 watt-hour battery. That means that you get the same absurdly adaptable platform, that’s easy to swap between a 145/150 millimeter 29er, the 150/160 millimeter mixed wheel bike I reviewed, or a 160/170 millimeter full 29-inch bike. And yes, the secret menu options are still available, although, as I’ll get into later, I actually prefer slightly different configurations with this bike than with the meat-powered version. Trek Fuel+ MX 9.8 Eagle 90 Gen 2, Travel: 150 mm (rear) 160 mm (front), Wheel Size: MX with full 29” capabilities, Size Tested: Large, Build Tested: 9.8 Eagle 90, Head Tube Angle: 64.2°, Motor: TQ HPR 60, Battery: 580 Wh, Measured Weight: 44.94 lbs (20.38 kg), MSRP: $10,199

Read Review

NSMB
2026 Trek Fuel EX

Sep 2025

Can vanilla be radical? Meet the new Fuel EX. Normcore trail excellence defined!

Highs
  • Excellent ride quality and balance

  • Highly versatile (three configurations)

  • Poised and neutral pedaling with good traction

  • Stable yet maneuverable in tight terrain

  • Size-specific chainstays and increased dropper insertion

  • More room inside front triangle for water bottles

  • Improved Bontrager dropper post

  • Quiet chain slap and under-downtube protection

Lows
  • No adjustable Mino link or headset cups

  • Discontinued XS and ML frame sizes

  • Stock grips are too large for some riders

  • Slight squat under load when climbing

Read Review

BIKE Magazine
Trek’s New Fuel Gen 7 Is Sleek, Fast, and Three Bikes in One

Aug 2025

The new line of Fuel and Fuel+ bikes from Trek are doing more with less thanks to some unique and exciting design elements.

Read Review

Bikerumor
The New Trek Fuel EX, MX, LX: More Options Than You Can Shake a Stick At

Aug 2025 · Jeremy Benson

The updated Trek Fuel has a new look, an updated frame, and is now available in three different configurations.

Read Review

off.road.cc
Trek Top Fuel 8 Gen 4 mountain bike review

Jan 2025

Although raced by Evie Richards on the elite-level cross-country circuit, Trek’s latest Top Fuel 8 Gen 4 is a bike that’ll cater to a raft of tastes thanks to its impressive adaptability. Despite the meagre suspension travel, it dishes out stellar trail manners up and downhill and is primed for UK trails.

Read Review

Geometry
Specs
Build
Frame

Alpha NEXT Platinum aluminum, internal storage, ZS headset, adjustable leverage rate, guided internal routing, interchangeable alloy rocker link, interchangeable lower shock mount, downtube guard, shuttle guard, BSA 73, ISCG 05, ABP, UDH, Boost148, adaptable travel 145mm-160mm

BB StandardBSA, 73mm, Threaded

Hanger StandardUDH

Tire Clearance2.5"

ColorsLithium Grey / Trek Black Splatter; Gloss Fury Red / Matte Dark Carmine

Fork

Fox Rhythm 36, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt X axle, 150mm travel

Travel150mm

Spring TypeAir

Shock

Fox Performance Float X, 2-position damper, 205mm x 60mm

Travel145mm

Bottom Bracket

SRAM DUB MTB Wide, 73mm, BSA threaded

Headset

FSA Orbit, sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom, 1.5 crown

Stem

Bontrager Elite, 35mm, 0 degree, 45mm length

Handlebar

Race Face Turbine, alloy, 35mm, 40mm rise, 780mm width

Saddle

Bontrager Verse P3, chromoly rails

Seatpost

Bontrager Line Dropper, 150mm travel, MaxFlow, internal routing, 34.9mm, 410mm length - S: Bontrager Line Dropper, 150mm travel, MaxFlow, internal routing, 34.9mm, 410mm length; M: Bontrager Line Dropper, 170mm travel, MaxFlow, internal routing, 34.9mm, 450mm length; L, XL: Bontrager Line Dropper, 200mm travel, MaxFlow, internal routing, 34.9mm, 515mm length

TypeDropper

Grips

Trek Line Comp, nylon lock-on

Groupset
Rear Derailleur

SRAM Eagle 70, T-Type

Crank

SRAM Eagle 70, DUB, 30T steel, T-Type, 55mm chainline, 170mm length

Shifters

SRAM Eagle 70, 12 speed

Cassette

SRAM Eagle XS-1270, T-Type,10-52, 12 speed

Chain

SRAM Eagle 70, T-Type, 12 speed

Brakes

SRAM DB 8 4-piston hydraulic disc

TypeSRAM DB8 Hydraulic Disc

Wheels
Rims

Bontrager Line TLR 30, Tubeless Ready, 28-hole, Presta valve

Spokes

DT Swiss Champion, J-Bend, 14g Stainless, 268mm, Black - S, M, L, XL: 14 g stainless steel, black; S, M, L, XL: 14g stainless

Front Hub

Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle

Rear Hub

Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, Shimano freehub, Boost148, 12mm thru axle

Tires

Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 27.5x2.50'' - S: Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 27.5x2.50''; S, M, L, XL: Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.50''

Disc Rotors

SRAM Centerline 2.0, 6-bolt, 200mm, SRAM part number 00.5018.111.006 - S, M, L, XL: SRAM Centerline 2.0, 6-bolt, 200mm; S, M, L, XL: SRAM Centerline 2.0, 6-bolt, 180mm

Rider Notes
Riders Also Viewed

First added August 9

Last updated June 23