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'A world-class trail bike!'
'The 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 pedalling, and to pump and pop off when you're playing.'
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'Good at pleasing everybody.'
'The 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.'
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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-rounder’
‘In a world where most new full-suspension mountain bikes are amazing, Fuel EX stands apart as even more than that.’
Read moreMore options
Which generation is right for you?
Choose from the lighter 130/140 mm Fuel EX Gen 5 with better parts for the price or the more robust 140/150 mm Fuel EX Gen 6 with more adjustability.
See the bikesService manual
Time to get out the repair stand for some maintenance? Find a detailed breakdown of your bike with part numbers, torque values and platform-specific tech instructions below.
Get it hereGet 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 PRs and riding with more confidence in no time.
Read moreProduct features
Will 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
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.
Straight Shot w/Knock Block
Trek's Straight Shot frame design optimises 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 optimise your suspension settings for your riding weight. Simply follow the steps to find your best set up.
Learn moreComplete Tubeless System
Tubeless Ready rims and tyres make it easy to ditch the tubes so you get better traction, fewer flats and less weight. You're ready to roll straight out of the box with the included TLR rim strips, valves and sealant.
Learn moreMino 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.
Alpha Platinum Aluminium
Our premium lightweight aluminium 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 set-up.
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 at the back lets you run wider tyres and a larger chain ring without affecting q-factor and pedalling efficiency.
| Frame | Alpha Platinum Aluminium, tapered head tube, Knock Block, Control Freak internal routing, downtube guard, ISCG 05, magnesium rocker link, Mino Link, ABP, Boost148, 130 mm travel |
|---|---|
| Fork | RockShox 35 Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 44 mm offset, Boost110, 15 mm Maxle Stealth, 140 mm travel |
| *Shock |
Size:
XS , S Fox Performance Float EVOL, 3-position DPS damper, tuned by Trek Suspension Lab, 210 mm x 52.5 mm |
|
Size:
S , M , ML , L , XL , XXL Fox Performance Float EVOL, 3-position DPS damper, tuned by Trek Suspension Lab, 210 mm x 55 mm |
|
| Max compatible fork travel | 150 mm |
| *Wheel front |
Size:
XS , S Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle, 27.5" |
|---|---|
|
Size:
S , M , ML , L , XL , XXL Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle, 29" |
|
| *Wheel rear |
Size:
XS , S Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 54, 6-bolt, Shimano 8/9/10 freehub, Boost148, 12 mm thru axle, 27.5" |
|
Size:
S , M , ML , L , XL , XXL Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 54, 6-bolt, Shimano 8/9/10 freehub, Boost148, 12 mm thru axle, 29" |
|
| Hub front | Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle |
| Skewer rear | Bontrager Switch thru-axle, removable lever |
| Rim | Bontrager Line Comp 30, Tubeless-Ready |
| Spokes | 14 g stainless steel, black |
| *Tyre |
Size:
XS , S Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 27.5 x 2.40'' |
|
Size:
XS , S Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 27.5 x 2.60" |
|
|
Size:
S , M , ML , L , XL , XXL Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 29x2.40" |
|
|
Size:
S , M , ML , L , XL , XXL Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 29 x 2.60" |
|
| Tyre part | Bontrager TLR sealant, 180 ml/6 oz |
| Max tyre size | Frame: 29x2.60", Fork: See manufacturer |
| Shifter | SRAM NX Eagle, 12-speed |
|---|---|
| Rear derailleur | SRAM NX Eagle |
| *Crank |
Size:
XS , S , M , ML , L SRAM NX Eagle, DUB, 30T steel ring, Boost (52mm chainline), 170mm length |
|
Size:
M , ML , L , XL , XXL SRAM NX Eagle, DUB, 30T steel ring, Boost, 175 mm length |
|
| Bottom bracket | SRAM DUB, 92 mm, PressFit |
| Cassette | SRAM PG-1230 Eagle, 11-50, 12 speed |
| Max. chainring size | 1x: 34T |
| Saddle | Bontrager Arvada, steel rails, 138 mm width |
|---|---|
| *Seatpost |
Size:
XS , S TranzX JD-YSP18, 100 mm travel, internal routing, 31.6 mm, 361 mm length |
|
Size:
XS , S Bontrager Line Dropper, 100 mm travel, internal routing, 31.6 mm, 345 mm length |
|
|
Size:
M , ML , L , XL , XXL TranzX JD-YSP18, 150 mm travel, internal routing, 31.6 mm, 470 mm length |
|
|
Size:
M , ML , L , XL , XXL Bontrager Line Dropper, 150 mm travel, internal routing, 31.6 mm, 440mm length |
|
| Handlebar | Bontrager alloy, 31.8 mm, 15 mm rise, 750 mm width |
| Grips | Bontrager XR Trail Comp, nylon lock-on |
| Stem | Bontrager Rhythm Comp, 31.8 mm, 0-degree, 50 mm length |
| *Brake |
Size:
XS , S , M , ML , L , XL , XXL Shimano hydraulic disc, MT4100 lever, MT410 calliper |
|
Size:
XS , S , M , ML , L , XL , XXL TRP Slate EVO hydraulic disc |
|
| *Brake rotor |
Size:
XS , S , M , ML , L , XL , XXL Shimano RT56, 6-bolt, 180 mm |
|
Size:
XS , S , M , ML , L , XL , XXL TRP, 6-bolt, 180 mm |
| Weight | M - 14.48 kg/31.93 lb (with TLR sealant, no tubes) |
|---|---|
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb). |