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2021 Trek

Fuel EX 7

A 27.5″ / 29″ aluminum frame full suspension trail bike with high-end components.

Manufacturer Price

$2,899
Weight31.1 lbs  
FrameAluminum
SuspensionFull, 130 / 140mm
ForkRockShox 35 Gold RL
ShockFox Float DPS Performance
Wheels27.5″ / 29″ Aluminum
Drivetrain1 × 12
GroupsetNX Eagle
BrakesShimano Deore Hydraulic Disc
SeatpostDropper
Where to Buy
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Fuel EX 7
Other Trail bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

24 mph

Fuel EX 7

26 mph

Similar Bikes

Highest gear

(descending)

Reviews

Summary

The Trek Fuel is a versatile and capable trail bike, praised for its improved suspension performance, adjustable geometry, and overall ride quality. It excels in a variety of terrains, offering a balanced mix of climbing efficiency and descending prowess. The bike's RE:aktiv and Thru Shaft shock technologies enhance its bump absorption and pedaling efficiency, making it a favorite among riders for its comfort and traction.

Pros
  • Versatile trail bike

  • Improved frame stiffness and tire clearance

  • RE:aktiv and Thru Shaft shock tech enhances ride quality

  • Adjustable geometry for personalized fit

  • Good traction and comfort on varied terrain

Cons
  • Frame storage hole too small for some pumps

  • Stock saddle limits adjustability

  • Line dropper post slower than leading aftermarket options

  • Heavy for spec and travel

  • Costs more than parts sold separately

Key Quotes
The Fuel EX is still the Fuel EX. It just got a little bit EX-er.
BIKE Magazine logoBIKE Magazine
It’s clearly a brilliantly balanced all-rounder.
Bike Perfect logoBike Perfect
The new EX is bigger and more capable. It faces tougher competition, but its performance, features, and adaptability make it a compelling option.
Bicycling
The Fuel EX has long been a benchmark trail bike.
BikeRadar logoBikeRadar
The Trek Fuel EX 9.9 is an absolute classic in the trail bike segment.
Gran Fondo Magazine logoGran Fondo Magazine

Feedback?

View all reviews

MTB Mag
[Dream Bike] Trek Fuel EX

Dec 2022 · Ian Collins

A couple months ago, I was on the hunt for a new mid-travel personal bike and found myself largely unconvinced by most of the offerings on the market. Then a new, highly adjustable and longer in the tooth Trek Fuel EX was announced. When I reached out to Trek to inquire about testing one they offered to send a frameset for me to build out. On paper given that it had my ideal geometry, loads of adjustments (including leverage rate!), internal storage and the options of  air or coil and mullet or straight 29″, this was the ultimate Swiss army

Read Review

Pinkbike
Field Test: Trek Fuel EX - Evolution Underlined

Dec 2022 · Mike Levy

The downtube storage compartment is on the new bike, and while it seems like Trek has put all the things onto the latest Fuel EX, there's one that they didn't: Knock Block.

Highs
  • Wide range of effective geometry adjustments

  • Just as much fun on smooth trails as it is on scary trails

  • Great climber, efficient pedaling

Lows
  • One-piece handlebar might be too stiff for some riders

  • Paint chips easily

Read Review

Singletracks
The Trek Fuel EX 9.8 Gen 6 is a Poised, Do-it-all Trail Bike [Review]

Nov 2022 · Matt Miller

The latest Trek Fuel EX trail bike grows in travel and geometry, but still dominates the climbs.

Highs
  • Capable and adaptable mid-travel trail bike

  • A lot of adjustability

  • Great price points, and alloy version

Lows
  • Too many options for adjustability?

Read Review

Bicycling
The New Trek Fuel EX Puts On Weight, Punches Harder, and Expands Its Reach

Sep 2022

New geometry, more travel, and even better suspension improves Trek's mid-weight trail bike.

Read Review

Bike Perfect
Trek Fuel EX 9.9 XX1 AXS – a brilliantly balanced all-rounder at an eye-watering cost

Sep 2022 · Guy Kesteven

More travel, longer, slacker and steeper, with extra adjustability and shock options. But how does Trek’s new trail all-rounder ride?

Highs
  • Superbly balanced adjustable geometry

  • Awesome suspension performance in ‘progressive’ mode

  • Poppy, playful and fast-climbing for its weight

  • Truly premium wireless, Fox Factory, carbon-loaded spec

  • Lifetime warranty, threaded BB and tunneled routing

Lows
  • Heavy for spec and travel

  • Costs more than parts sold separately

  • Default shock set-up is too linear

  • Headset adjustment is laborious

  • XX1 is fragile for aggro trail use

Read Review

NSMB
Trek Top Fuel Review

Jul 2022

This Trek Top Fuel review has it all: Speed, sustainability, shifting mindsets, and thoughts on the new breed of short travel trail bikes.

Read Review

Beta
Trek Introduces the New Top Fuel

Oct 2021 · Ryan "Squirrel" LaBar

Adding fire to the Fuel

Read Review

Enduro Mountainbike Magazine
Trek Fuel EX 9.8 GX 2021 in review - Trail performance over bling components

Jun 2021 · Peter Walker

The Trek Fuel EX has proven itself as an excellent all-rounder in the past. This year, the American brand enters the race with the € 5,999 Trek Fuel EX 9.8 GX, which combines a high-end frame with a mid-level spec but still features Trek's Thru Shaft shock technology. So does it always have to be top-spec? How big is the difference in performance and how does the Fuel EX 9.8 GX fare against its more expensive peers?

Highs
  • Very comfortable uphill

  • Intuitive handling

  • High-quality frame with integrated storage compartment

Lows
  • Tires are very puncture prone and generate little traction

  • Brakes don't do the bike’s potential justice

Read Review

Geometry
Specs
Build
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

BB StandardBB86/BB92, Press Fit

Tire Clearance2.6"

ColorsTrek Black / Radioactive Red; Dark Aquatic / Trek Black

Fork

RockShox 35 Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 140mm travel

Travel140mm

Spring TypeAir

Shock

Size: XS, S, Fox Performance Float EVOL, 3-position DPS damper, tuned by Trek Suspension Lab, 210mm x 52.5mm; Size: S, M, ML, L, XL, XXL, Fox Performance Float EVOL, 3-position DPS damper, tuned by Trek Suspension Lab, 210mm x 55mm

Travel130mm

Bottom Bracket

SRAM DUB, 92mm, PressFit

Headset

Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom

Stem

Bontrager Rhythm Comp, 31.8mm, Knock Block, 0 degree, 50mm length

Handlebar

Bontrager alloy, 31.8mm, 15mm rise, 750mm width

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, 150mm travel, internal routing, 31.6mm, 445mm length

TypeDropper

Grips

Bontrager XR Trail Comp, nylon lock-on

Groupset
Rear Derailleur

SRAM NX Eagle

Crank

Size: XS, S, 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 (52mm chainline), 175mm length

Shifters

SRAM NX Eagle, 12 speed

Cassette

SRAM PG-1230 Eagle, 11-50, 12 speed

Chain

SRAM NX Eagle, 12 speed

Brakes

Shimano hydraulic disc, MT4100 lever, MT410 caliper

TypeShimano Deore Hydraulic Disc

Wheels
Rims

Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle

Spokes

DT Swiss Champion, J-Bend, Black

Front Hub

Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle

Tires

Size: XS, S, Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 27.5x2.40''; Size: XS, S, Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 27.5x2.60''; Size: S, M, ML, L, XL, XXL, Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewall, 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, 29x2.60''

Disc Rotors

Shimano RT56, 6-bolt, 180mm

Rider Notes
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First added July 10

Last updated May 10

Not listed for 1,481 days