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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."
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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."
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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 bikesGet 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 moreWill 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.
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.
RE:aktiv technology gives you firm support for efficient pedaling that instantly gives way for smooth control when the trail turns rough.
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.
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.
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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.
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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.
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Alpha Platinum Aluminum
Our premium lightweight aluminum is continuously cold extruded and butted at multiple points, and hydroformed into sophisticated tube shapes for maximum strength and minimum weight.
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
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.
| Frame | Alpha Platinum Aluminum, tapered head tube, Knock Block, Control Freak internal routing, downtube guard, ISCG 05, magnesium rocker link, Mino Link, ABP, Boost148, 130mm travel |
|---|---|
| Fork | Fox Rhythm 34, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 140mm travel |
| *Shock |
Size:
XS , S Fox Performance Float EVOL, 3-position RE:aktiv damper, tuned by Trek Suspension Lab, 210mm x 52.5mm |
|
Size:
S , M , ML , L , XL , XXL Fox Performance Float EVOL, 3-position RE:aktiv damper, tuned by Trek Suspension Lab, 210mm x 55mm |
|
| Max compatible fork travel | 150mm (561mm axle-to-crown) |
| Wheel front | Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle |
|---|---|
| *Wheel rear |
Size:
XS , S Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 54, 6-bolt, Boost148, 12mm thru axle |
|
Size:
S , M , ML , L , XL , XXL Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12mm thru axle |
|
| Skewer rear | Bontrager Switch thru axle, removable lever |
| *Tire |
Size:
XS , S Bontrager XR5 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 60 tpi, 27.5x2.50'' |
|
Size:
S , M , ML , L , XL , XXL Bontrager XR5 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 60 tpi, 29x2.50'' |
|
| Tire part | Bontrager TLR sealant, 6oz |
| Rim strip | Bontrager TLR |
| Max tire size | Frame: 29x2.60", Fork: See manufacturer |
| Shifter | Shimano XT M8100, 12 speed |
|---|---|
| Rear derailleur | Shimano XT M8100, long cage |
| *Crank |
Size:
XS , S , M , ML , L Shimano SLX M7100, 30T alloy ring, 52mm chainline, 170mm length |
|
Size:
XL , XXL Shimano SLX M7100, 30T alloy ring, 52mm chainline, 175mm length |
|
| Bottom bracket | Shimano MT500, 92mm, PressFit |
| Cassette | Shimano XT M8100, 10-51, 12 speed |
| Chain | Shimano SLX M7100, 12 speed |
| Max chainring size | 1x: 34T |
| Saddle | Bontrager Arvada, hollow chromoly rails, 138mm width |
|---|---|
| *Seatpost |
Size:
XS , S Bontrager Line Dropper, 100mm travel, internal routing, 31.6mm, 345mm length |
|
Size:
M , ML , L , XL , XXL Bontrager Line Dropper, 150mm travel, internal routing, 31.6mm, 440mm length |
|
| *Handlebar |
Size:
XS , S Bontrager Line, alloy, 35mm, 27.5mm rise, 750mm width |
|
Size:
M , ML , L , XL , XXL Bontrager Line, alloy, 35mm, 27.5mm rise, 780mm width |
|
| Grips | Bontrager XR Trail Elite, nylon lock-on |
| *Stem |
Size:
XS , S Bontrager Elite, 35mm, 0 degree, 35mm length |
|
Size:
M , ML , L , XL , XXL Bontrager Elite, 35mm, 0 degree, 45mm length |
|
| Headset | Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom |
| *Brake |
Size:
XS , S , M , ML , L , XL , XXL Shimano hydraulic disc, MT4100 lever, MT420 4-piston caliper |
|
Size:
XS , S , M , ML , L , XL , XXL Shimano 4-piston hydraulic disc, MT4100 lever, MT420 caliper |
|
| *Brake rotor |
Size:
XS , S , M , ML , L , XL , XXL Shimano RT66, 6-bolt, 180mm |
|
Size:
M , ML , L , XL , XXL Shimano RT66, 6-bolt, 203mm |
| Weight | M - 13.86 kg / 30.56 lbs (with TLR sealant, no tubes) |
|---|---|
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg). |