Fuel EX 5 is a full-suspension trail bike thats ready to handle it all. With trail-taming 140mm front and 130mm rear suspension, a Shimano 1x12 drivetrain, a dropper post for getting low on descents, and hydraulic disc brakes, the Fuel EX 5 hits the mark as a high-value, high-performance mountain bike with exceptional versatility.
- You get a high-end ride at an exceptional value with frame features like Boost148 and ABP that give you confident handling and room to upgrade parts as your skills grow
- It has the capability of far more expensive trail bikes: it shreds singletrack and can even handle the occasional XC or enduro race
- The dropper post lets you lower your saddle on the fly so its out of the way on descents
- The RockShox forks DebonAir spring can easily be adjusted for a specific rider weight, and its lighter than a coil spring
- We expanded our size range to ensure a better fit for all riders. And, you get the fastest wheel that fits your frame: XS frames get 27.5˝ wheels, S frames get to choose between 27.5˝ or 29˝, and sizes M to XL get 29˝ wheels
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
Treks Straight Shot frame design optimizes the stiffness-to-weight ratio for a more responsive ride. Youll be able to push harder and stay more planted on your line when the going gets rough.
![]()

Shimano Deore
Shimano Deore brings even more adventure with a wider range of gear choices for the steep stuff, the fast stuff, and the fun. With smooth riding, improved chain stability, and sharp shifting, Deore heightens your mountain biking confidence and control so you can focus on the trail and enjoy the ride.
![]()

You almost forgot your pedals
This bike doesn’t come with pedals because youll have a better ride if you choose your own. Explore the pedal guide to find the best pedals for your riding style. Reach for flat pedals for simple versatility or go for clipless MTB pedals if you want control & 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 |
RockShox Recon Silver, Solo Air spring, Motion Control damper, lockout, tapered steerer, 42mm offset, Boost110, Maxle Stealth, 140mm travel |
Shock |
X-Fusion Pro 2, 2-position damper, 210mm x 52.5mm |
Wheel Front |
/ |
Tire |
Bontrager XR4 Comp, wire bead, 30 tpi, 27.5x2.60 |
Hub Front |
Bontrager alloy, 6-bolt, Boost110, 15mm thru axle |
Hub Rear |
Bontrager alloy, sealed bearing, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru axle |
Rim |
Alex MD35, tubeless compatible, 32-hole, 35mm width, Presta valve |
Rim Strip |
Bontrager TLR |
Skewer Rear |
Bontrager Switch thru axle, removable lever |
Shifter |
Shimano Deore M6100, 12 speed |
Rear Derailleur |
Shimano Deore M6100, long cage |
Crank |
Shimano MT511, 30T steel ring, 52mm chainline, 170mm length |
Bottom Bracket |
Shimano MT500, 92mm, PressFit |
Cassette |
Shimano Deore M6100, 10-51, 12 speed |
Chain |
Shimano Deore M6100, 12 speed |
Brake |
Shimano hydraulic disc, MT201 lever, MT200 caliper // Shimano hydraulic disc, MT201 lever, MT200 caliper |
Brake Rotor |
Shimano RT56, 6-bolt, 180mm |
Saddle |
Bontrager Arvada, steel rails, 138mm width |
Seatpost |
TranzX JD-YSP18, 100mm travel, internal routing, 31.6mm, 361mm length |
Seat Collar |
Bolt-on, 36.4mm |
Handlebar |
Bontrager alloy, 31.8mm, 15mm rise, 750mm width |
Stem |
Bontrager Rhythm Comp, 31.8mm, 0 degree, 50mm length |
Headset |
Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8 top, 1.5 bottom |
Grips |
Bontrager XR Trail Comp, nylon lock-on |
Geometry Chart
B B Drop |
2.1 |
B B Height |
33.5 |
Chainstay Length |
43.7 |
Eff Seat Tube Angle |
75.0° |
Eff Top Tube |
54.6 |
Frame Reach |
39.5 |
Frame Size Letter |
XS |
Frame Size Number |
14.0" |
Frame Stack |
56.3 |
Head Angle |
66.0° |
Head Tube Length |
9 |
Offset |
4.3 |
Position |
Low |
Seat Tube |
35.6 |
Seat Tube Angle |
69.0° |
Standover |
69.5 |
Trail |
11.1 |
Wheelbase |
112 |
Wheel Size |
27.5" |
B B Drop |
2.1 |
B B Height |
33.5 |
Chainstay Length |
43.7 |
Eff Seat Tube Angle |
75.0° |
Eff Top Tube |
56.8 |
Frame Reach |
41.5 |
Frame Size Letter |
S |
Frame Size Number |
15.5" |
Frame Stack |
57.2 |
Head Angle |
66.0° |
Head Tube Length |
10 |
Offset |
4.3 |
Position |
Low |
Seat Tube |
39.5 |
Seat Tube Angle |
69.0° |
Standover |
69.4 |
Trail |
11.1 |
Wheelbase |
114.4 |
Wheel Size |
27.5" |
B B Drop |
3.4 |
B B Height |
34 |
Chainstay Length |
43.7 |
Eff Seat Tube Angle |
75.0° |
Eff Top Tube |
57.8 |
Frame Reach |
41.5 |
Frame Size Letter |
S |
Frame Size Number |
15.5" |
Frame Stack |
60.9 |
Head Angle |
66.0° |
Head Tube Length |
10 |
Offset |
4.3 |
Position |
Low |
Seat Tube |
39.5 |
Seat Tube Angle |
67.5° |
Standover |
71.1 |
Trail |
11.9 |
Wheelbase |
115.4 |
Wheel Size |
29" |
B B Drop |
3.4 |
B B Height |
34 |
Chainstay Length |
43.7 |
Eff Seat Tube Angle |
75.0° |
Eff Top Tube |
60.3 |
Frame Reach |
44 |
Frame Size Letter |
M |
Frame Size Number |
17.5" |
Frame Stack |
60.9 |
Head Angle |
66.0° |
Head Tube Length |
10 |
Offset |
4.3 |
Position |
Low |
Seat Tube |
42 |
Seat Tube Angle |
67.5° |
Standover |
74.2 |
Trail |
11.9 |
Wheelbase |
117.9 |
Wheel Size |
29" |
B B Drop |
3.4 |
B B Height |
34 |
Chainstay Length |
43.7 |
Eff Seat Tube Angle |
75.0° |
Eff Top Tube |
61.9 |
Frame Reach |
45.5 |
Frame Size Letter |
ML |
Frame Size Number |
18.5" |
Frame Stack |
61.3 |
Head Angle |
66.0° |
Head Tube Length |
10.5 |
Offset |
4.3 |
Position |
Low |
Seat Tube |
43.5 |
Seat Tube Angle |
67.5° |
Standover |
74.5 |
Trail |
11.9 |
Wheelbase |
119.6 |
Wheel Size |
29" |
B B Drop |
3.4 |
B B Height |
34 |
Chainstay Length |
43.7 |
Eff Seat Tube Angle |
75.0° |
Eff Top Tube |
63.4 |
Frame Reach |
47 |
Frame Size Letter |
L |
Frame Size Number |
19.5" |
Frame Stack |
61.3 |
Head Angle |
66.0° |
Head Tube Length |
10.5 |
Offset |
4.3 |
Position |
Low |
Seat Tube |
45 |
Seat Tube Angle |
67.5° |
Standover |
75 |
Trail |
11.9 |
Wheelbase |
121.1 |
Wheel Size |
29" |
B B Drop |
3.4 |
B B Height |
34 |
Chainstay Length |
43.7 |
Eff Seat Tube Angle |
75.0° |
Eff Top Tube |
66.3 |
Frame Reach |
49.5 |
Frame Size Letter |
XL |
Frame Size Number |
21.5" |
Frame Stack |
62.7 |
Head Angle |
66.0° |
Head Tube Length |
12 |
Offset |
4.3 |
Position |
Low |
Seat Tube |
50 |
Seat Tube Angle |
67.5° |
Standover |
76.2 |
Trail |
11.9 |
Wheelbase |
124.2 |
Wheel Size |
29" |