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 9 27.5

  • OCLV Mountain Carbon frame & seatstay
  • Bontrager Race X Lite Carbon handlebar
  • Bontrager Evoke 3 saddle w/Ti rails
  • Bontrager Race X Lite stem

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.

OCLV Mountain Carbon

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

OCLV Mountain seatstay

Full OCLV Mountain Carbon seatstay reduces frame weight by about 100g.

Carbon Armor

External shield protects the carbon 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.

2x10

A 10-speed cassette and 2-ring crankset deliver a full range of usable gears, with less weight and easier, smoother gear shifting.

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.

BB95

The stiffest carbon bottom bracket on the market. A Trek exclusive.

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.