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Today’s Deals2024 Trek
Top Fuel C Gen 3 Frameset
A 29″ carbon frame full suspension trail frameset.
Manufacturer Price
$1,399| Weight | 6.0 lbs (frame) |
|---|---|
| Frame | Carbon |
| Suspension | Full, 120mm rear |
| Shock | Fox Float DPS Factory |
| Wheels | 29″ |
Summary
The Trek Top Fuel is celebrated for its versatility and performance across a wide range of trail conditions, offering a lightweight frame, refined suspension, and user-friendly features. It excels in handling and efficiency, making it a favorite for riders seeking a balanced trail bike. However, some reviews note limitations in rear travel and brake performance, suggesting room for improvement in more aggressive setups.
Lighter and more versatile
Excellent suspension performance
User-friendly details and internal storage
Balanced and intuitive handling
Durable and creak-free design
Stock brakes could be stronger
Limited rear travel in certain setups
Heavier than some carbon competitors
The new Top Fuel lets me have my cake and eat it too.
BIKE MagazineThe result is a surefooted, smooth yet still engaging and rewarding ride for big days out or a no-holds-barred power hour in the local woods.
Bike PerfectTrek is hitting its stride with the Trek Top Fuel Gen 4.
BikerumorThe result is a whisker away from perfection.
MBRThe Top Fuel is an excellent bike.
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View all reviews
Aug 2025 · Cole Gregg
Trek have done an excellent job with the Top Fuel 9, producing a bike that rips the climbs and still has legs for a rowdy descent.
Apr 2025 · Simon Kohler
In our 2025 big trail bike comparison test, the Trek Top Fuel 9.8 GX AXS takes on the hottest bikes of the season. How does it fare against the competition?
Very efficient climber
Extensive adjustability options
Very little stability at speed
Demanding handling
Underwhelming component choices
Less premium-looking design
Feb 2025 · Joshua Hutchens
The new Top Fuel is the 4th generation of Trek's lightweight, short-travel trail bike, gaining more versatility and some cool functionality. This...
Adjustable geometry and leverage
Frame storage with BITS
ABP suspension
Bar/stem combo limits adjustability
Heavier wheels
Tires provide a speed limit
Jan 2025
Although raced by Evie Richards on the elite-level cross-country circuit, Trek’s latest Top Fuel 8 Gen 4 is a bike that’ll cater to a raft of tastes thanks to its impressive adaptability. Despite the meagre suspension travel, it dishes out stellar trail manners up and downhill and is primed for UK trails.
Dec 2024 · Mike Kazimer
We tested almost every single configuration of the new Top Fuel to figure out which one works the best.
Great mix of pedaling and descending capabilities
Wide range of effective adjustments
Clean looking frame with all the modern amenities
Not as light as you'd expect considering the price
Underpowered brakes
Nov 2024 · Spencer Astra
We’re getting deeper into autumn in the Pacific Northwest. This shift leads to slick trails and cooler temperatures. The new Trek Top Fuel seems to be the perfect companion to scoot around the mountain and dodge puddles. This bike immediately caught my attention, delivering an unexpectedly fun and efficient experience in a sleek, trail-friendly package. With a lightweight, carbon frame and components tuned for speed and control, the Top Fuel has quickly become a bike I look forward to riding.
Oct 2024
3 months aboard the 9.8 GX AXS version of Trek's XC-plus, trail-lite, most of the bell curve-targeted Top Fuel
Exceptional pedaling efficiency and climbing ability.
Cohesive, balanced ride feel.
Excellent build quality with no creaks or rattles.
Well-matched Rockshox Pike fork and Deluxe shock.
Versatile geometry with adjustable flip-chip.
Clean fit and finish, tidy cable routing.
Good for 90% of trails.
Uncomfortable saddle (Trek Verse Comp).
Bontrager Line dropper post has fore-aft play and rattles.
SRAM Level Bronze brakes lack bite at high speeds.
RSL integrated bar/stem is stiff, causing hand fatigue.
Heavy wheelset (~2000g) on a $7000 carbon bike, contributing to ~30lb weight.
Conservative geometry (76° seat, 65.5° head angle) may not suit all.
Oct 2024 · Jeff Barber
The Trek Top Fuel is a short-travel mountain bike that tries to do a lot of things, though I found it's really an XC bike at heart.
Efficient pedaling, as long as the climbing is shock set to firm
A joy on descents
Bontrager components are surprisingly solid
Not as comfortable or playful as other downcountry bikes
Fit might be tricky for some riders
Can’t get away with leaving the shock open for the whole ride
| Frame | OCLV Mountain Carbon, internal storage, tapered head tube, Knock Block 2.0, internal guided routing, downtube guard, magnesium rocker link, Mino Link, ABP, Boost148, 120mm travel Color: Matte Emerald Iris |
|---|---|
| Shock | Fox Factory Float DPS, 3-position damper, open-mode adjustment, Kashima Coat, 185mm x 50mm Travel: 120mm |
| Headset | Knock Block 2.0 Integrated, 72-degree radius (includes infinite-radius chip), sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom |
| Stem | Bontrager Elite, 35mm, 0 degree, 45mm length |
First added March 23
Last updated June 7