Features /

The world's best-loved mountain bike keeps getting better. Fuel EX continues to set the bar for full suspension trail bike versatility, bringing race-day tech to all-day adventure.

Upgrades from Fuel EX 8 27.5

  • Fox Performance suspension w/RE:aktiv
  • Bontrager Rhythm Comp TLR wheels
  • SRAM 1x11 drivetrain
  • Shimano XT hydraulic disc brakes
  • RockShox Reverb Stealth dropper post

Wheel size, simplified

Confused about MTB wheel size? You're in luck: we've cut through the hype and simplified the selection process for you.

ABP

Our patented Active Braking Pivot allows your suspension to work freely whether you’re on the brakes or off. It’s smooth, controlled suspension that’s at its best all the time.

DRCV

With DRCV, you can have it all: supple small-bump feel, great pedalling efficiency, and seemingly bottomless travel for the big stuff.

Full Floater

We attach the shock to two moving linkage points for greater response over a wide variety of terrain. It feels like more travel, but it’s not. It’s smarter travel.

EVO Link

Our exclusive system connects the main frame to the rear triangle with a one-piece rocker link, creating a stiffer frame for greater control with minimal weight.

RE:aktiv

RE:aktiv brings Formula 1 technology to mountain bike suspension. A Trek exclusive.

E2 tapered head tube

E2 tapers from a 1.5" lower to a 1-1/8" upper, placing more material where it matters most for the stiffness of a full 1.5" system without the added weight.

Alpha Platinum Aluminium

Trek's premium alloy, formed into sophisticated tube shapes for maximum strength and minimum weight.

Down tube guard

Replaceable external shield protects the down tube from trail debris.

27.5" wheels

27.5" is the newest MTB wheel size. It falls between 26" and 29er, but closer to 26". It rides and behaves much like a 26" wheel, with a little more stability and speed.

1x11

1x11 system gives you super-light simplicity without sacrificing performance and gearing options on the trail.

142x12

A more robust and confidence-inspiring rear through axle, about 35% stiffer than an open dropout design. And now, a through-axle wheel change is actually quick and easy.

15QR

A 15mm front through axle makes steering more precise for more control, and the quick-release feature makes wheel removal easy.

Dropper-post internal routing

Frame is prepped for internal routing if you decide to add a remotely adjustable seat post.

RockShox Reverb with Stealth routing

RockShox Reverb gives you 125mm of seat height adjustment with a hydraulically actuated remote, stealthily routed though the frame itself.

Internal derailleur routing

Route your derailleur cables through the frame to keep your bike running smooth and clean.

ISCG mounts

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

Climb-Trail-Descend

CTD gives you three suspension adjustment options: Climb, Trail, or Descend. It’s a simple, intuitive, high-performance system available on select Fox shocks and forks.

Extended size range

A wider range of sizes than the industry standard provides more options for everyone, from tallest to shortest and all those in between. Because everyone deserves a great ride.

Fully integrated head tube

A fully integrated head tube eliminates the need for headset cups, reducing overall weight without sacrificing performance.

Press-fit bottom bracket

Press-fit BB increases pedalling efficiency and allows for a stronger, stiffer frame structure.