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  • Fuel EX 9.8 GX AXS Gen 5
  • Fuel EX 9.8 GX AXS Gen 5
Overview

It's right for you if...

You want a single bike that can handle any trail with the light weight and vibration damping of a carbon frame. You're willing to pay for parts that give you a better connection with the trail, including crisp, precise wireless electronic shifting.

The tech you get

A light and stiff full-carbon frame with internal storage, FOX Performance 36 fork with a GRIP damper that offers more adjustment, and a RE:aktiv with Thru Shaft shock. SRAM's latest GX Eagle AXS wireless electronic drivetrain with a leg-saving 52-tooth climbing gear, plus all-new Bontrager carbon wheels with a 108-tooth Rapid Drive hub for instant engagement, and powerful 4-piston brakes.

The final word

Fuel EX 9.8 is a great investment for one bike that does it all. You get a light carbon frame, but it's the parts that make this model, like the extra-adjustable GRIP damper, the magic-carpet ride of Thru Shaft, and the blistering acceleration of carbon wheels with a Rapid Drive hub.

See it in action

favorite_borderWhy you'll love it

  1. The SRAM GX Eagle AXS drivetrain is smart, smooth, and completely wireless
  2. RE:aktiv with Thru Shaft works faster than a normal shock, so it tracks the ground better and keeps you in control
  3. The Fox Performance 36 fork gives you four-way damping adjustments for extra-dialed suspension
  4. We expanded our size range to ensure a better fit for all riders. And, you get the fastest wheel that fits your frame: XS frames get 27.5˝ wheels, S frames get to choose between 27.5˝ or 29˝, and sizes M to XL get 29˝ wheels
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"A world-class trail bike"

"Fuel EX is a beautifully balanced and capable trail bike. The rear suspension is beautiful; as close to ideal as any bike I've ridden. It's sensitive where you want it to be, firm and crisp where it should be. It feels deep and controls big hits very well, and there's a nice platform for pedaling, and to pump and pop off when you're playing."

Read more
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"Good at pleasing everybody"

"Fuel EX has a few tricks that help it keep a level head when outside of its comfort zone, and to be a cloud on rails when it's in the zone. Everything about the Fuel EX, which was already good at pleasing everybody, is now even better at it."

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"An absolute trail rocket"

"Thanks to its burlier components, increased travel, and more aggressive geometry, it has become more of a shredder than ever! More performance, fun, and trail prowess."

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"Perfect all-arounder"

"In a world where most new full-suspension mountain bikes are amazing, Fuel EX stands apart as even more than that."

Read more

More options

NEW 2023
Fuel EX 9.9 XX1 AXS Gen 6

Fuel EX 9.9 XX1 AXS Gen 6

$10,749.99 

NEW 2023
Fuel EX 9.9 XTR Gen 6

Fuel EX 9.9 XTR Gen 6

$9,749.99 

NEW 2023
Fuel EX 9.8 GX AXS Gen 6

Fuel EX 9.8 GX AXS Gen 6

$7,699.99 

NEW 2023
Fuel EX 9.8 XT Gen 6

Fuel EX 9.8 XT Gen 6

$6,249.99 - $6,749.99 

SALE 2023
Fuel EX 9.8 GX Gen 5

Fuel EX 9.8 GX Gen 5

$6,249.99  | $6,549.99 

NEW 2023
Fuel EX 9.7 Gen 6

Fuel EX 9.7 Gen 6

$4,699.99 

SALE 2023
Fuel EX 9.7 Gen 5

Fuel EX 9.7 Gen 5

$4,199.99  | $4,329.99 

NEW 2023
Fuel EX 8 Gen 6

Fuel EX 8 Gen 6

$4,299.99 

SALE 2023
Fuel EX 8 Gen 5

Fuel EX 8 Gen 5

$3,799.99  | $3,929.99 

NEW 2023
Fuel EX 7 Gen 6

Fuel EX 7 Gen 6

$3,699.99 

2023
Fuel EX 5 Gen 5

Fuel EX 5 Gen 5

$2,699.99 

NEW 2023
Fuel EX C Frameset Gen 6

Fuel EX C Frameset Gen 6

$3,899.99 

2023
Fuel EX C Frameset Gen 5

Fuel EX C Frameset Gen 5

$3,719.99 

2023
Fuel EX C Frameset Gen 5

Fuel EX C Frameset Gen 5

$3,299.99 

NEW 2023
Fuel EX AL Frameset Gen 6

Fuel EX AL Frameset Gen 6

$2,599.99 

2023
Fuel EX AL Frameset Gen 5

Fuel EX AL Frameset Gen 5

$2,319.99 

Which generation is right for you?

Choose from the lighter 130/140mm Fuel EX Gen 5 with better parts for the price or the more robust 140/150mm Fuel EX Gen 6 with more adjustability.

See the bikes

Get faster on the trail in a week

When it comes to being a better trail rider, practice makes perfect. Get seven tips from Pinkbike’s Christina Chappetta that will have you setting PR's and riding with more confidence in no time.

Read more

How to pack for any trail ride

Everything you need (and nothing you don’t).

Learn how

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100% Airmatic Mountain Bike Jersey

100% Airmatic Mountain Bike Jersey

$36.75 - $49.00  | $49.00 

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Osprey Siskin 8 Men's Hydration Pack

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Bontrager Blaze WaveCel LTD Mountain Bike Helmet

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$199.99 - $349.99  | $299.99 - $349.99 

Bontrager TLR Tire Sealant

Bontrager TLR Tire Sealant

$4.99 - $29.99 

Bontrager Cambion Mountain Bike Shoe

Bontrager Cambion Mountain Bike Shoe

$224.99 

100% Airmatic Mountain Bike Short

100% Airmatic Mountain Bike Short

$89.00 - $99.00 

100% Ridecamp Mountain Bike Glove

100% Ridecamp Mountain Bike Glove

$24.50 

Bontrager Pro Ratchet Multi-Tool

Bontrager Pro Ratchet Multi-Tool

$129.99 

Features

Will my bike have a curved top tube?

Smaller frames (XS and S) have a top tube that dips down as it approaches the seat tube. This design makes for a lower standover height, which is good for shorter riders because it allows them to straddle their bike more easily. Larger frames (M and up) have a straight top tube because taller riders with longer legs typically don’t have the same issues with standover height.

Internal Storage

Internal frame storage makes it easy to ditch the pack and still carry your ride essentials.

Watch the video

Active Braking Pivot

Active Braking Pivot allows our engineers to tune how the suspension reacts to acceleration and braking forces independently. That means you get more confident control when you need it most.

Learn more

RE:aktiv with Thru Shaft

RE:aktiv with Thru Shaft gives you unmatched grip and control with a shock that reacts to the terrain faster than anything else out there.

Learn more

Straight Shot w/Knock Block

Trek's Straight Shot frame design optimizes the stiffness-to-weight ratio for a more responsive ride. You'll be able to push harder and stay more planted on your line when the going gets rough.

Learn more
Suspension Calculator

Suspension Calculator

This suspension calculator will help you optimize your suspension settings for your riding weight. Simply follow the steps to find your best set up.

Learn more

Complete Tubeless System

Complete Tubeless System

Tubeless Ready rims and tires make it easy to ditch the tubes so you get better traction, fewer flats, and less weight. You're ready to roll right out of the box with the included TLR rim strips, valves, and sealant.

Learn more

Carbon Care Wheel Loyalty Program

Carbon Care Wheel Loyalty Program

Every set of Bontrager carbon wheels is backed by the Carbon Care Wheel Loyalty Program. In the unlikely event that you damage your Bontrager carbon wheels within the first two years of ownership, we’ll repair or replace them for free.

Learn more

OCLV Mountain Carbon

OCLV Mountain Carbon

Trek's mountain-specific carbon fiber is tougher carbon, with unique materials and layup procedures, Trek's advanced engineering, and a higher standard of testing.

Learn more

Mino Link adjustable geometry

Mino Link adjustable geometry

Fine tune head tube angle by 1/2° and BB height by up to 10mm with the simple turn of a nut. Just flip the link to choose between slack or slacker geometry, without negatively affecting suspension performance. A Trek exclusive.

Learn more

Control Freak Cable Management

Control Freak Cable Management

The lightest, quietest, most versatile cable management system allows any combination of shift, brake, lockout, and dropper post lines to be routed through the frame for clean looks and the ultimate custom setup.

Boost148/110

Boost148/110

Wider dropouts (110mm front, 148mm rear) give you the stiffness of a 27.5" wheel with all the benefits of a 29" wheel, and Boost148 in the rear lets you run wider tires and a larger chainring without affecting q-factor and pedaling efficiency.

Specs Sizing
Geometry Service Reviews
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