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  • Top Fuel 8
Overview

It's right for you if...

You’re looking for a do-it-all full suspension mountain bike that balances efficiency with shred-ability. You want to rip rough descents, fly up climbs, and crush lap after lap.

The tech you get

A lightweight aluminum frame with internal storage, 120mm RockShox SID fork with plush DebonAir spring, 120mm of rear travel with a FOX Performance Float shock, and a Shimano XT drivetrain. Plus, 4-piston brakes for confident descents, Bontrager Line Comp 30 wheels that are already completely tubeless ready, including sealant, and a Bontrager Line Dropper.

The final word

Top Fuel 8 gets you the value of an alloy frame with drivetrain, fork, and brake upgrades that keep up as you progress in speed and skill.

The Walkthrough

favorite_borderWhy you'll love it

  1. This bike’s killer suspension setup is both efficient and ready to party
  2. Mino Link lets you make small adjustments to your geometry quickly and easily, even mid-ride
  3. A sleek internal storage compartment gives you a versatile spot to stow tools and gear
  4. New, removable Knock Block has a bigger steering angle to keep cables and hoses safe without sacrificing turning radius
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MBUK’s Trail Bike of the Year 2022

“It’s easy to look at the bike from afar and assume this is just another downcountry rig... It wasn’t until I’d fired it over some jumps, nosed it down the odd steep chute and slung it through my test loops’ berms that I realised the Top Fuel is, simply put, a bloody brilliant trail bike.”

Read more
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"Enduro’s Best Downcountry Bike of 2022"

"Top Fuel 9.9 XX1 AXS earned top honors in Enduro’s round-up of best downcountry rippers, thanks to the bike’s clean look, practical details, and progressive suspension."

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"This is a really, really good bike"

"The Top Fuel is a very capable descender, but its well-proportioned geometry is just half the story. It manages to strike a great balance between grip, tracking, and precision. The whole bike seems to just will you on to hit things faster and with more precision."

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"This thing rips"

"The new Top Fuel is also much more composed on rough and fast descents. Thanks to the longer reach and slacker head angle, the overall wheelbase length has grown by almost 40mm. That’s huge, and it offers a vastly more planted feel at speed. Along with the big tyres and active suspension, this really is a solid little trail bike."

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More options

NEW 2023
Top Fuel 9.9 XX1 AXS

Top Fuel 9.9 XX1 AXS

$11,499.99 

2022
Customize
Top Fuel 9.9 XX1 AXS

Top Fuel 9.9 XX1 AXS

$11,499.99 

NEW 2023
Customize
Top Fuel 9.9 XTR

Top Fuel 9.9 XTR

$9,549.99 

2022
Customize
Top Fuel 9.9 XTR

Top Fuel 9.9 XTR

$9,549.99 

NEW 2023
Customize
Top Fuel 9.8 GX AXS

Top Fuel 9.8 GX AXS

$7,649.99 

2022
Customize
Top Fuel 9.8 GX AXS

Top Fuel 9.8 GX AXS

$7,549.99 

NEW 2023
Customize
Top Fuel 9.8 XT

Top Fuel 9.8 XT

$7,149.99 

2022
Customize
Top Fuel 9.8 GX

Top Fuel 9.8 GX

$7,049.99 

2022
Customize
Top Fuel 9.8 XT

Top Fuel 9.8 XT

$6,549.99 - $7,049.99 

2022-2023
Top Fuel 9.7

Top Fuel 9.7

$4,499.99 - $4,699.99 

2022-2023
Top Fuel 7

Top Fuel 7

$3,529.99 - $3,629.99 

2022-2023
Top Fuel 5

Top Fuel 5

$2,699.99 

2023
Top Fuel C Frameset

Top Fuel C Frameset

$3,799.99 

2023
Top Fuel AL Frameset

Top Fuel AL Frameset

$2,399.99 

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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Features

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

Quick and in control

120mm of rear travel combined with progressive trail geometry gives you a fast, responsive ride that helps you keep your cool when the trail turns rowdy.

Internal Storage

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

Watch the video

Hassle-free routing

Guided internal cable routing keeps Top Fuel quiet on the trail and maintenance a breeze.

Learn more

Will my bike have a curved top tube?

Smaller frames (XS and S) have a curved top tube. This design makes for a lower standover height, which allows shorter riders to straddle the 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.

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

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

Oversized 34.9mm dropper post

Oversized 34.9mm dropper post

Bigger is better. The oversized seat tube diameter gives more support and strength for longer travel droppers, and allows for more robust, durable internals that work faster.

Threaded bottom bracket

Threaded bottom bracket

More robust than pressfit, threaded BBs hold up in nasty conditions and make servicing easier.

ISCG mounts

ISCG mounts

International Standard Chain Guide mounts offer easy chain guide installation and adjustment.

Knock Block

Knock Block

Knock Block has your frame's back when things go wrong. It prevents your handlebars from spinning all the way around in a crash, so your hoses won't get yanked, and your controls won't hit the top tube.

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

Specs Sizing
Geometry Service Reviews
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