Trek Fuel EX C Gen 6 Frameset
Trek / Trail Mountain Bikes
One bike for every kind of trail.
Fuel EX C Frameset is a light and ready frameset that's only limit is your imagination. It's constructed from lightweight, vibration-damping carbon fiber for a ride that's stiff where you want it and compliant where you don't. Its engineered for the trail with progressive geometry that stretches out the front-end for more control on descents, and gets steeper in the rear for better pedaling efficiency.
Based on the bike's size chart. Your complimentary baseline fit in store dials in the rest.
Ship to store · free pickup, usually ready in 4–7 business days
Questions are welcome. No pressure, no bike jargon required.
The ride, not just the specs
Fuel is the all-around trail bike: smooth on the climbs, playful on the way down, and happy on just about any trail you point it at.
If you want one mountain bike that can do a bit of everything, start here.
What makes it special
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.
Install angle adjust headset cups (sold separately) to tweak the 64.5-degree head tube angle a degree steeper or slacker to your liking — all without impacting your bottom bracket height.
Adjust leverage rate with just a flip of a chip. Ride it in the Less progressive setting for a plusher feel perfect for rugged trails with square-edge bumps. Flip it to More progressive when you're hitting big features and don’t want to bottom-out, or when you want to run a coil shock.
For the detail-oriented
Tap any group to see every part.
Measurements in cm unless noted.
| Size | XS | XS | S | S | S | S | M | M | XL | XL |
|---|---|---|---|---|---|---|---|---|---|---|
| Rider height | 4'9"–5'1" | 4'9"–5'1" | 5'1"–5'5" | 5'1"–5'5" | 5'1"–5'5" | 5'1"–5'5" | 5'5"–5'10" | 5'5"–5'10" | 6'2"–6'5" | 6'2"–6'5" |
| Seat tube (A on the drawing) | 36.0 | 36.0 | 38.0 | 38.0 | 38.0 | 38.0 | 41.0 | 41.0 | 47.0 | 47.0 |
| Seat tube angle (B on the drawing) | 70.8° | 70.8° | 70.8° | 70.8° | 70.8° | 70.8° | 70.8° | 70.8° | 70.8° | 70.8° |
| Head tube length (C on the drawing) | 9.5 | 9.5 | 9.5 | 9.5 | 9.5 | 9.5 | 10.0 | 10.0 | 12.0 | 12.0 |
| Head tube angle (D on the drawing) | 64.5° | 64.5° | 64.5° | 64.5° | 64.5° | 64.5° | 64.5° | 64.5° | 64.5° | 64.5° |
| Eff. top tube (E on the drawing) | 51.6 | 51.6 | 55.4 | 55.4 | 55.4 | 55.4 | 58.4 | 58.4 | 66.2 | 66.2 |
| BB height (F on the drawing) | 33.2 | 33.2 | 33.5 | 33.5 | 33.5 | 33.5 | 33.5 | 33.5 | 33.5 | 33.5 |
| BB drop (G on the drawing) | 2.5 | 2.5 | 3.8 | 3.8 | 3.8 | 3.8 | 3.8 | 3.8 | 3.8 | 3.8 |
| Chainstay length (H on the drawing) | 43.5 | 43.5 | 43.5 | 43.5 | 43.5 | 43.5 | 43.5 | 43.5 | 44.5 | 44.5 |
| Offset (I on the drawing) | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 |
| Trail (J on the drawing) | 12.2 | 12.2 | 12.9 | 12.9 | 12.9 | 12.9 | 12.9 | 12.9 | 12.9 | 12.9 |
| Wheelbase (K on the drawing) | 114.5 | 114.5 | 118.6 | 118.6 | 118.6 | 118.6 | 121.3 | 121.3 | 128.7 | 128.7 |
| Standover (L on the drawing) | 71.6 | 71.6 | 73.2 | 73.2 | 73.2 | 73.2 | 73.7 | 73.7 | 76.0 | 76.0 |
| Reach (M on the drawing) | 40.0 | 40.0 | 42.5 | 42.5 | 42.5 | 42.5 | 45.0 | 45.0 | 51.5 | 51.5 |
| Stack (N on the drawing) | 57.4 | 57.4 | 61.2 | 61.2 | 61.2 | 61.2 | 61.7 | 61.7 | 63.5 | 63.5 |
| Position | Low | Low | Low | Low | Low | Low | Low | Low | Low | Low |
| Wheel size | 27.5" | 27.5" | 29" | 29" | 29" | 29" | 29" | 29" | 29" | 29" |
| Eff. seat tube angle | 78.6° | 78.6° | 78.6° | 78.6° | 78.6° | 78.6° | 78.2° | 78.2° | 76.6° | 76.6° |
The Atlanta Cycling difference
Specs matter. But so does how a bike feels when you ride it. Our team is here to help you choose the right size, understand the details, and get comfortable before your first ride.
When you buy from Atlanta Cycling, you're not just getting a box with a bicycle in it. You're getting a 30-day money-back guarantee, a complimentary baseline fit, lifetime basic adjustments, and real people who want you to love every mile.
“Pinkbike's 2022 Mountain Bike of the Year”
This is a bike that could be used to head out for a big meandering backcountry adventure one day, roll up to the starting line in a local enduro race the next, or even head into the bike park for a lap or three without missing a beat.
pinkbike.com · Read the review
“Editor's Choice: Best Mid-Travel Trail Bike”
The burliest, most versatile, and most capable Fuel yet; truly up for whatever you want to ride [...] The updated geometry sits comfortably amongst today's best trail bikes [...] Absolutely shreds right out of the box.
outdoorgearlab.com · Read the review
“Our favorite Trek”
Fuel EX proved itself a happy climber. From slabs to roots and square-edge hits, the Fuel EX handled it masterfully. A damn fine trail bike right out of the box, no matter your riding style.
vitalmtb.com · Read the review
“Fuel EX is a masterpiece”
Fuel EX absolutely devours chunky terrain while still retaining the ability to tractor up steep climbs. I have become convinced that a bike with long, stable geometry and mid-level travel really can provide the best of both worlds.
freehubmag.com · Read the review
“Editor's Choice”
The term ‘quiver killer’ may be old and tired, but there’s nothing old-fashioned about a versatile mountain bike that can handle nearly any terrain [...] Riding the Fuel EX this summer was a treat!
bikerumor.com · Read the review
“Loves to ride fast, both up and down”
Fuel EX is a highly adaptable bike that feels comfortable in a really wide variety of terrain but doesn’t confuse itself for anything more or less. Bike riders, rejoice.
theloamwolf.com · Read the review
“Ready for anything”
Fuel EX's geometry feels ready for just about anything. There's plenty of traction for climbing and a nice fluttery feel on descents, calmly smothing out the trail chatter.
pinkbike.com · Read the review
Four neighborhood stores. One shared passion.
Ansley. Alpharetta. Roswell. Vinings. Stop by, take a test ride, ask questions, and meet the people who will be here long after your first ride.
