You're ready to go full suspension, and you want a versatile trail bike at a great value. You want a ride that's sure-footed, capable, and responsive so you can stay in control no matter where you're riding.
A sturdy aluminum frame with a Knock Block steerer stop to protect against spinning bars. A 140mm RockShox Recon Silver fork, 130mm of rear travel with an X-Fusion Pro 2 shock, a durable 12-speed Shimano Deore drivetrain, dropper post, and hydraulic disc brakes.
You get full suspension performance without the sticker shock. Fuel EX 5 has the same proven frame technology that riders have loved over the years, with parts chosen to keep the price tag low and stoke level high.
- 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 it's out of the way on descents
- The RockShox fork's DebonAir spring can easily be adjusted for a specific rider weight, and it's 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
if (typeof dataLayer !== "undefined") {
dataLayer.push({
"ecommerce": {
"currency": "",
"impressions": [
{
"id": "22370",
"name": "Bontrager Comp MTB Pedal Set",
"price": "",
"brand": "Bontrager",
"category": "Bike pedals",
"list": "",
"position": 1
}
,
{
"id": "31913",
"name": "100% Airmatic Mountain Bike Short",
"price": "",
"brand": "100%",
"category": "Mountain bike shorts & bib shorts",
"list": "",
"position": 2
}
,
{
"id": "35886",
"name": "Bontrager Right Side Load Recycled Water Bottle Cage",
"price": "",
"brand": "Bontrager",
"category": "Bike water bottles & cages",
"list": "",
"position": 3
}
,
{
"id": "31564",
"name": "Bontrager Rally WaveCel Mountain Bike Helmet",
"price": "",
"brand": "Bontrager",
"category": "Bike helmets",
"list": "",
"position": 4
}
,
{
"id": "31923",
"name": "100% Ridecamp Mountain Bike Glove",
"price": "",
"brand": "100%",
"category": "Full finger cycling gloves",
"list": "",
"position": 5
}
,
{
"id": "34041",
"name": "Osprey Siskin 8 Men's Hydration Pack",
"price": "",
"brand": "Osprey",
"category": "Bike bags & panniers",
"list": "",
"position": 6
}
,
{
"id": "32853",
"name": "Bontrager Pro Multi-Tool",
"price": "",
"brand": "Bontrager",
"category": "Bike tools & maintenance",
"list": "",
"position": 7
}
,
{
"id": "25335",
"name": "Bontrager Cambion Mountain Bike Shoe",
"price": "",
"brand": "Bontrager",
"category": "Mountain bike shoes",
"list": "",
"position": 8
}
,
{
"id": "27290",
"name": "Bontrager TLR Tire Sealant",
"price": "",
"brand": "Bontrager",
"category": "Bike tires",
"list": "",
"position": 9
}
,
{
"id": "31916",
"name": "100% Airmatic Mountain Bike Jersey",
"price": "",
"brand": "100%",
"category": "Mountain bike jerseys",
"list": "",
"position": 10
}
,
{
"id": "37371",
"name": "Trek Voda Flow Water Bottle",
"price": "",
"brand": "Trek",
"category": "Bike water bottles & cages",
"list": "",
"position": 11
}
]
}
});
}
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.
Learn more
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.
Learn more
This suspension calculator will help you optimize your suspension settings for your riding weight. Simply follow the steps to find your best set up.
Learn more
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.
Learn more
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.
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.
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.
*spec applies to all sizes unless otherwise noted
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 |
Size:
XS , S X-Fusion Pro 2, 2-position damper, 210mm x 52.5mm |
Size:
S , M , ML , L , XL , XXL X-Fusion Pro 2, 2-position damper, 210mm x 55mm |
Max compatible fork travel |
150mm (561mm axle-to-crown) |
Hub front |
Bontrager alloy, 6-bolt, Boost110, 15mm thru axle |
*Hub rear |
Size:
XS , S , M , ML , L , XL , XXL Bontrager alloy, sealed bearing, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru axle |
Size:
XS , S , M , ML , L , XL , XXL Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru axle |
Skewer rear |
Bontrager Switch thru axle, removable lever
|
Rim |
Alex MD35, tubeless compatible, 32-hole, 35mm width, presta valve |
Spokes |
14g stainless steel |
*Tire |
Size:
XS , S Bontrager XR4 Comp, wire bead, 30 tpi, 27.5x2.60'' |
Size:
S , M , ML , L , XL , XXL Maxxis Rekon EXO, wire bead, 60 tpi, 29x2.60'' |
Size:
S , M , ML , L , XL , XXL Bontrager XR4 Comp, wire bead, 30 tpi, 29x2.60'' |
Rim strip |
Bontrager TLR |
Max tire size |
Frame: 29x2.60" Fork: See manufacturer |
Shifter |
Shimano Deore M6100, 12 speed |
Rear derailleur |
Shimano Deore M6100, long cage |
*Crank |
Size:
XS , S , M , ML , L Shimano MT511, 30T steel ring, 52mm chainline, 170mm length |
Size:
M , ML , L , XL , XXL Shimano MT511, 30T steel ring, 52mm chainline, 175mm length |
Bottom bracket |
Shimano MT500, 92mm, PressFit |
Cassette |
Shimano Deore M6100, 10-51, 12 speed |
Chain |
Shimano Deore M6100, 12 speed |
Max chainring size |
34T |
Saddle |
Bontrager Arvada, steel rails, 138mm width |
*Seatpost |
Size:
XS , S TranzX JD-YSP18, 100mm travel, internal routing, 31.6mm, 361mm length |
Size:
M , ML , L , XL , XXL TranzX JD-YSP18, 130mm travel, internal routing, 31.6mm, 425mm length |
Handlebar |
Bontrager alloy, 31.8mm, 15mm rise, 750mm width |
Grips |
Bontrager XR Trail Comp, nylon lock-on
|
Stem |
Bontrager Rhythm Comp, 31.8mm, Knock Block, 0 degree, 50mm length
|
Headset |
Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom |
Brake |
Shimano hydraulic disc, MT201 lever, MT200 caliper |
Brake rotor |
Shimano RT56, 6-bolt, 180mm |
Weight |
M - 15.70 kg / 34.62 lbs |
Weight limit |
This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg). |
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, materials, and pricing. Prices shown are manufacturer's suggested retail prices.
Bike and frame weights are based off pre-production painted frames at time of publication. Weights may vary in final production.
The charts below show our recommended sizes based on height, but there are some other factors, like arm and leg length, that determine a great fit. That’s why you’ll see some overlap in our recommendations. Not every rider who’s 5´8˝, for example, will fit on the same size bike. The best way to find your perfect fit is to consult the experts at your local retailer.
All measurements provided in cm unless otherwise noted.
14.0" |
XS |
Low |
27.5" |
35.6 |
69.0° |
75.0° |
9 |
66.0° |
54.6 |
33.5 |
2.1 |
43.7 |
4.3 |
11.1 |
112 |
69.5 |
39.5 |
56.3 |
14.0" |
XS |
High |
27.5" |
35.5 |
69.5° |
75.5° |
9 |
66.5° |
54.5 |
34.1 |
1.4 |
43.6 |
4.3 |
10.6 |
111.9 |
70 |
40 |
55.9 |
15.5" |
S |
Low |
27.5" |
39.5 |
69.0° |
75.0° |
10 |
66.0° |
56.8 |
33.5 |
2.1 |
43.7 |
4.3 |
11.1 |
114.4 |
70 |
41.5 |
57.2 |
15.5" |
S |
High |
27.5" |
39.5 |
69.5° |
75.5° |
10 |
66.5° |
56.7 |
34.1 |
1.4 |
43.6 |
4.3 |
10.6 |
114.3 |
70.7 |
42 |
56.8 |
15.5" |
S |
Low |
29" |
39.5 |
67.5° |
75.0° |
10 |
66.0° |
57.8 |
34 |
3.4 |
43.7 |
4.3 |
11.9 |
115.4 |
70.1 |
41.5 |
60.9 |
15.5" |
S |
High |
29" |
39.5 |
68.0° |
75.5° |
10 |
66.5° |
57.7 |
34.6 |
2.8 |
43.6 |
4.3 |
11.5 |
115.3 |
70.7 |
42 |
60.5 |
17.5" |
M |
Low |
29" |
42 |
67.5° |
75.0° |
10 |
66.0° |
60.3 |
34 |
3.4 |
43.7 |
4.3 |
11.9 |
117.9 |
74.2 |
44 |
60.9 |
17.5" |
M |
High |
29" |
42 |
68.0° |
75.5° |
10 |
66.5° |
60.2 |
34.6 |
2.8 |
43.6 |
4.3 |
11.6 |
117.8 |
74.8 |
44.5 |
60.5 |
18.5" |
ML |
Low |
29" |
43.5 |
67.5° |
75.0° |
10.5 |
66.0° |
61.9 |
34 |
3.4 |
43.7 |
4.3 |
11.9 |
119.6 |
74.5 |
45.5 |
61.3 |
18.5" |
ML |
High |
29" |
43.5 |
68.0° |
75.5° |
10.5 |
66.5° |
61.8 |
34.6 |
2.8 |
43.6 |
4.3 |
11.6 |
119.5 |
75.1 |
46 |
60.9 |
19.5" |
L |
Low |
29" |
45 |
67.5° |
75.0° |
10.5 |
66.0° |
63.4 |
34 |
3.4 |
43.7 |
4.3 |
11.9 |
121.1 |
75 |
47 |
61.3 |
19.5" |
L |
High |
29" |
45 |
68.0° |
75.5° |
10.5 |
66.5° |
63.3 |
34.6 |
2.7 |
43.6 |
4.3 |
11.6 |
121 |
75.6 |
47.5 |
60.9 |
21.5" |
XL |
Low |
29" |
50 |
67.5° |
75.0° |
12 |
66.0° |
66.3 |
34 |
3.4 |
43.7 |
4.3 |
11.9 |
124.2 |
76.2 |
49.5 |
62.7 |
21.5" |
XL |
High |
29" |
50 |
68.0° |
75.5° |
12 |
66.5° |
66.2 |
34.6 |
2.7 |
43.6 |
4.3 |
11.6 |
124.1 |
76.8 |
50 |
62.3 |
var pr_merchant_user_id = "";
var pr_merchant_user_email = "";
var pr_api_key = "87b3f2f0-f542-43f9-bf33-10c41cffcb73";
var pr_locale = "en_US";
var pr_merchant_group_id = "10250";
var pr_merchant_id = "4404";
var pr_page_id = "2020_29459";
if (pr_page_id === undefined || pr_page_id === null || pr_page_id.trim() === "") {
// default to sku if poerreviewid is null
pr_page_id = "33073";
}
var pr_write_review = "/us/en_US/bikes/mountain-bikes/trail-mountain-bikes/fuel-ex/fuel-ex-5/p/33073/writeReview?";
var pr_product_name = "Fuel EX 5";
var pr_product_url = "https://www.trekbikes.com/p/" + "33073" + "/";
var pr_product_image = "//trek.scene7.com/is/image/TrekBicycleProducts/FuelEX5Deore_21_33073_A_Primary?wid=690&hei=518&fmt=png8-alpha&qlt=80,1&op_usm=0,0,0,0&iccEmbed=0&cache=on,on";
if (pr_product_image && !pr_product_image.startsWith("http")) {
pr_product_image = "https:" + pr_product_image;
}
var pr_product_description = pr_product_name;
var pr_product_category_name = "Trail mountain bikes";
var pr_product_manufacturer_id = "33073";
var pr_product_upc = "601842380406";
var pr_product_brand_name = "Trek";
var pr_product_price = "";
var pr_product_in_stock = "";
window.pwr = window.pwr || function () {
(pwr.q = pwr.q || []).push(arguments);
};