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The ultimate trail bike is waiting – Trek Fuel

Fuel your wildest rides

Got an appetite for everything? Meet the Fuel. From fast and loose steeps to side hits, high alpine climbs to rough countryside boulders, the Fuel is a rip-anything trail bike that adapts to however and wherever you ride. Three configurations satisfy any trail rider, whether you’re after the balanced handling of a true trail bike, a playful and poppy ripper, or a long travel crusher. Add in refined frame details and award-winning suspension kinematics and the Fuel delivers the custom-tunable ride you’ve always dreamed of.  

Fine tune for full send

Only you can define your perfect trail bike – that’s why select Fuel models are available in three adjustability-packed configurations, all from the same chassis. Start by choosing from the do-it-all EX, the pop-happy MX or the point-and-plough LX, then tweak and tune your build just to your liking. Or, if you’re starting with a Fuel EX model, you can change your set-up with aftermarket links. Whatever your set-up, you’ll get a geometry-corrected ride with the suspension leverage rate to match.

Three beasts

Fuel EX

With 29” wheels and 145/150 mm (rear/front) travel, the EX is the classic Fuel configuration. You get the most efficient pedalling and the most balanced handling, making it the right bike for a massive variety of riders and terrain. That’s why the Fuel 5, 7 and 9.7 only come standard as an EX.

Shop Fuel EX

Fuel MX

The Fuel MX is a side-hit savage ready for airtime. It gives you a quick-handling 27.5˝ rear wheel paired with a monster-truckin’ 29er in front. It’s ready to rip with 150/160 mm (rear/front) travel for getting zesty on jump lines. 

Shop Fuel MX

Fuel LX

Want a build that’s burly by nature? The Fuel LX is a long-travel trail smasher with 160/170 mm (rear/front) travel and a full 29er set-up. You get more travel for the rowdiest, roughest terrain – plus, it’s ideal for ripping a coil shock. 

Shop Fuel LX

Dialled to be different

Many trail bikes allow you to swap 29ers for mullet or roll with different shocks, but most don’t adapt the frame to optimise your new set-up. This means that you end up compromising your ride with suspension that doesn’t feel quite right, off-kilter geometry or a bottom bracket so low it causes pedal strikes on every climb.

The Fuel is different. We don’t just throw on a few new parts and call it a day, because we don’t want your component selection to compromise the geometry or quality of your ride. All three versions of the Fuel start with the same frame, but the magic in these builds comes from interchangeable rocker links and shock mounts that adapt the chassis for your dream build.

Built your way

Want to cherry-pick your build? Spec your Fuel with your dream drivetrain, fork, shock, wheels and more, through Project One MTB. Our expert mechanics will handle the rest.

Available in alloy on the Fuel 9, and carbon on Fuel 9.8 and 9.9 models.

1.
Massive dropper insertion 

The Fuel’s new frame design lets most medium-sized riders run a 200 mm dropper post. 

2.
Dialled trail geometry

Larger sizes have taller stack height (vs the Fuel EX Gen 6) for better weight distribution when descending steep terrain

3.
Size-specific chain stays

Size-specific chainstays give smaller riders better handling in tight corners and taller riders better weight distribution on climbs.

4.
Primed for smaller riders

Size small standard Fuel EX models come with an MX link and a 27.5 rear wheel for the best fit straight out of the box, but it's easy to swap to a full 29er.

The Fuel family

Fuel EX Gen 6


• 140 mm rear travel 
• 150 mm front travel 
• 29er 
• 64.5° head tube (+/- 1° with angle adjust) 
• Internal storage

Shop Fuel EX Gen 6

Fuel Gen 7


• 145 to 160 mm rear travel 
• 150 to 170 mm front travel 
• 29er or geometry corrected MX 
• 63.5° to 64.5° head tube (+/- 1° with angle adjust) 
• Internal storage 2.0 

Shop Fuel Gen 7

Looking for something a little different?

Top Fuel

Sometimes less is more. The Top Fuel is a shorter-travel full-suspension rough countryside bike ready for all-day pedal fests. It’s just as happy hammering out miles on smooth-rolling cross-country singletrack as it is dipping over the back of the mountain to explore off-the-beaten-track adventures.

Shop Top Fuel 

Slash

Want to go bigger? The Slash is a long-travel trail bike that looks like a monster truck and rides like a magic carpet. It’s built for big all-mountain terrain, racing the clock on rugged enduro lines and having a rip-roaring good time in the rough. 

Shop Slash