Bikes up to 60% offWe monitor over 40,000 bikes daily to find the best prices

Today’s Deals

2018 Trek

Fuel EX Jr

A 26″ aluminum frame mountain youth bike with upper mid-range components and shimano hydraulic disc brakes.

Manufacturer Price

$1,889
Weight28.9 lbs  
FrameAluminum
SuspensionFull, 90 / 90mm
ForkX-Fusion VELVET
ShockX-Fusion
Wheels26″ Aluminum
Drivetrain2 × 10
GroupsetDeore
BrakesShimano Hydraulic Disc
Learn about Trek
Where to Buy
Similar Bikes
Top Comparison
Insights
Ride Feel

Based on frame geometry and build specs.

Handling
nimblestable
Fuel EX Jr
Other Mountain Youth 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)

23 mph

Fuel EX Jr

Highest gear

(descending)

Reviews

Summary

The Trek Fuel series is celebrated for its innovative frame design and versatile performance, making it a standout in the mountain-youth category. Its suspension system, particularly the Active Braking Pivot (ABP) and RE:aktiv technology, delivers a plush ride that excels both uphill and downhill. The bikes are noted for their stiff frames, efficient climbing, and confident handling, though some models could benefit from upgrades like tubeless wheelsets and dropper posts.

Pros
  • Innovative frame and suspension design

  • Efficient climbing with good traction

  • Confident and balanced handling

  • High-quality components and durable construction

  • Versatile performance across various terrains

Cons
  • Non-tubeless wheelset and tyres on some models

  • Lack of a dropper post in entry-level builds

  • Narrow bars limiting aggressive riding

  • Basic wheelset with workaday hubs

  • Some models have front suspension that can't match the rear's performance

Key Quotes
A great full-sus all-rounder with an innovative frame.
Cyclist logoCyclist
Trek's Fuel EX 7 29er contains modern bike technology with a classic ride feel
BikeRadar logoBikeRadar
No matter where and how we rode it during our year-long test the Fuel EX reaffirmed the outstanding credentials that earned it its 'best in test' badge
Enduro Mountainbike Magazine logoEnduro Mountainbike Magazine
If your long-legged enduro bike is a chainsaw, the Fuel EX rides like a surgeon’s scalpel.
Loam Wolf logoLoam Wolf
The carbon fronted Trek Fuel EX 9.7 29 is easily the stiffest bike in those we tested.
MBR logoMBR

Feedback?

View all reviews

BIKE Magazine
Bible Review: Trek Fuel EX 9.9

Dec 2019

The Quintessential letterman athlete—pulling straight A's, playing hoops and running track, with manners perfect for meeting the parents.

Read Review

Outdoor Gear Lab
Trek Fuel EX 8

Nov 2019 · Jeremy Benson

The Fuel EX 8 is an impressively capable, versatile, and well-rounded trail bike that is ready for anything you are. Trek redesigned the Fuel EX models for...

Highs
  • Relatively affordable

  • Good component spec for the price

  • Great small bump compliance

  • Versatile/well-rounded

Lows
  • Frame sizing feels a little small

  • Can be overwhelmed in super aggressive terrain

Read Review

Mountain Bike Action
Throwback Thursday: Trek Fuel EX 9.9 29

Oct 2019 · McCoy

One seriously light and capable bike

Read Review

Pinkbike
Video: 2020 Santa Cruz Tallboy VS Trek Fuel EX - Cage Match

Sep 2019 · Pinkbike Originals

The Fuel EX and Tallboy are both brand new and impressively capable trail bikes, but which one do we prefer? Levy and Kazimer ride both and pick the winner.

Read Review

Singletrack World
Review | The 2019 Trek Fuel EX 9.7 is a tech-heavy trail bike that rips hard

Apr 2019 · Rob Mitchell

We've been testing two 2019 130mm travel 29er trail bikes; the GT Sensor Expert and the Trek Fuel EX 9.7. Here we review the Trek Fuel EX.

Read Review

Whistler Mountain Bike
2019 Trek Top Fuel 9.8 SL 1st Ride Impression

Feb 2019 · Dale Tiessen

Let’s be clear - Trek’s Top Fuel is a XC race weapon. This is not your typical ‘Whistler XC’ bike, which the greater industry may characterize as a ‘trail’ or ‘all mountain’ bike. The Top Fuel is designed for World Cup XC race courses. It is meant to be precise, light and fast.

Read Review

Flow Mountain Bike
TESTED: Trek Fuel EX 9.9

Jan 2019

Planning a trip to Derby late last year we were faced with a tough call to make, what bike should we take for someone who’s never been there before? The Fjord Lord, our friend from Terrengsykkel, Norway’s best mountain bike magazine was visiting, and he’s a great photographer and keen adventurer, but he was bike-less …

Highs
  • An ideal trail bike for adventures.

  • Buttery smooth suspension.

  • Holds its own in the black run trails.

Lows
  • Rattling brake pads.

  • Heavy thumb lever for dropper.

Read Review

Cyclist
Trek Fuel EX 5 full suspension MTB review

Oct 2018 · Joseph Delves

A great full-sus all-rounder with an innovative frame

Read Review

Geometry
Specs
Build
Frame

Alpha Gold Aluminum, ABP Convert, Full Floater, E2 tapered head tube, EVO link, 90mm travel

Fork

X-Fusion Velvet RL, air spring, rebound, lockout, E2 tapered steerer, 90mm travel

Travel90mm

Spring TypeAir

Shock

X-Fusion Microlite RL, air spring, rebound, lockout, 152x32mm

Travel90mm

Bottom Bracket

sealed cartridge

Headset

Integrated, cartridge bearing, sealed, 1-1/8˝ top, 1.5˝ bottom

Stem

Bontrager Elite, 31.8mm, 7 degree, Blendr compatible

Handlebar

Bontrager alloy, 25.4mm, 15mm rise

Saddle

Dialed 24˝ size, padded

Seatpost

Bontrager SSR, 2-bolt head, 31.6mm, 12mm offset

TypeRigid

Pedals

Not included

Grips

Bontrager Race

Groupset
Rear Derailleur

Shimano Deore, Shadow Plus

Front Derailleur

Shimano Deore, high direct mount

Crank

Alloy, 24/32 w/bashguard

Shifters

Shimano Deore, 10 speed

Cassette

Shimano HG50, 11-36, 10 speed

Chain

KMC X10

Brakes

Shimano M315 hydraulic disc

TypeShimano Hydraulic Disc

Wheels
Rims

Bontrager AT-650 32-hole double-walled alloy

Front Hub

Formula DC20 alloy

Rear Hub

Formula DC22 alloy

Tires

Bontrager XR2, 26x2.20˝

Rider Notes
Riders Also Viewed

First added February 15

Last updated February 15

Not listed for 3,025 days