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2026 Trek

Fuel MX 9 Eagle 90 Gen 7

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

Manufacturer Price

$4,999
Weight37.0 lbs  
FrameAluminum
SuspensionFull, 150 / 160mm
ForkFox Factory Float 36
ShockFox Float X Factory
Wheels29″ / 27.5″ Aluminum
Drivetrain1 × 12
GroupsetEagle 90 Transmission
BrakesSRAM Maven Bronze Hydraulic Disc
SeatpostDropper
View on trekbikes.comLearn about Trek
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Fuel MX 9 Eagle 90 Gen 7
Other Enduro 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)

25 mph

Fuel MX 9 Eagle 90 Gen 7

26 mph

Similar Bikes

Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Sizing
15.5"

5'1" – 5'6"

17.5"

5'4" – 5'11"

19.5"

5'9" – 6'3"

21.5"

6'1" – 6'5"

Rider Fit Notes

None yet.

Do you have this bike? Help other riders make a decision about which size will work for them by sharing your own size and fit notes.

Price History
Reviews
99 Spokes
Is The All-New Trek Fuel 3 Bikes in 1? | Weekly Rewind Ep. 33

Aug 2025

Welcome back to The Weekly Rewind presented by 99 Spokes, where we catch you up on all the hottest cycling news from the ...

Watch Review

Pinkbike
1 Frame, 3 Setups: We Timed Every Build to Find the Fastest | Trek Fuel EX vs MX vs LX

Mar 2026 · Pinkbike Originals

At the top end of the range is the Fuel LX with 170 millimeters of fork travel and 160 in the rear, returning to a full-29-inch wheel format.

Highs
  • Single frame can be configured into three distinct models with multiple travel and geometry options.

  • In-frame storage available across all models.

  • Choice between carbon or aluminum construction.

  • Compatibility with angle-adjust headsets.

Read Review

Enduro Mountainbike Magazine
Trek Fuel LX 9.8 XT Di2 – In Our Big 2026 Enduro Comparison Test

Feb 2026 · Lars Engmann

Is the Trek Fuel LX 9.8 XT Di2 the Best Enduro Bike for the 2026 Season? We Put It Through the Wringer to Find Out.

Highs
  • Variable frame platform

  • Highly capable suspension

  • Comfortable riding position

  • Agile handling

Lows
  • Needs better rider integration

  • Inconsistent spec

  • Drivetrain rattles on the descents

  • Restless at high speed

Read Review

Freehub
Adaptable performance. | Trek Fuel+ Gen 2

Jan 2026

When Trek launched the all-new Fuel line last summer, I was eager to spend time on the Fuel LX, MX, and MLX configurations. I’ve spilled a lot of words about that bike here, here, and here, and it’s safe to say I’m fairly smitten with it. But Trek wasn’t content to just release perhaps the most adaptable trail bike of the year. They simultaneously announced a corresponding “+” line that takes the same geometry and features and slaps on TQ’s new HPR 60 motor and a 580 watt-hour battery. That means that you get the same absurdly adaptable platform, that’s easy to swap between a 145/150 millimeter 29er, the 150/160 millimeter mixed wheel bike I reviewed, or a 160/170 millimeter full 29-inch bike. And yes, the secret menu options are still available, although, as I’ll get into later, I actually prefer slightly different configurations with this bike than with the meat-powered version. Trek Fuel+ MX 9.8 Eagle 90 Gen 2, Travel: 150 mm (rear) 160 mm (front), Wheel Size: MX with full 29” capabilities, Size Tested: Large, Build Tested: 9.8 Eagle 90, Head Tube Angle: 64.2°, Motor: TQ HPR 60, Battery: 580 Wh, Measured Weight: 44.94 lbs (20.38 kg), MSRP: $10,199

Read Review

NSMB
2026 Trek Fuel EX

Sep 2025

Can vanilla be radical? Meet the new Fuel EX. Normcore trail excellence defined!

Highs
  • Versatile platform with three models (EX, MX, LX) sharing same frame

  • Cohesion, poise, and balance in ride quality

  • Excellent climbing and descending performance

  • Maneuverable in tight terrain despite stable geometry

  • Quiet chain slap and good frame protection

  • Improved dropper post compared to previous Bontrager

  • Adjustable via swappable rocker links (EX to MX/LX)

Lows
  • Stock grips too large for smaller hands

  • No adjustable Mino link or headset cups

  • Some squat under hard pedaling

Read Review

Loam Wolf
Long-Term Review: Trek Top Fuel Gen 4

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.

Read Review

BIKE Magazine
Trek’s New Fuel Gen 7 Is Sleek, Fast, and Three Bikes in One

Aug 2025

The new line of Fuel and Fuel+ bikes from Trek are doing more with less thanks to some unique and exciting design elements.

Read Review

Bikerumor
The New Trek Fuel EX, MX, LX: More Options Than You Can Shake a Stick At

Aug 2025 · Jeremy Benson

The updated Trek Fuel has a new look, an updated frame, and is now available in three different configurations.

Read Review

Geometry
Specs
Build
Frame

Alpha NEXT Platinum aluminum, internal storage, ZS headset, adjustable leverage rate, guided internal routing, interchangeable alloy rocker link, interchangeable lower shock mount, downtube guard, shuttle guard, BSA 73, ISCG 05, ABP, UDH, Boost148, adaptable travel 145mm-160mm

BB StandardBSA, 73mm, Threaded

Hanger StandardUDH

Tire Clearance2.5"

ColorsMatte Juniper / Blue Sage Splatter; Lithium Grey / Trek Black Splatter; Matte Sedona Red / Pennyflake Splatter

Fork

Fox Factory 36, Float EVOL air spring, GRIP X2 damper, 44mm offset, Boost 110, 15mm Kabolt X axle, 160mm travel

Travel160mm

Spring TypeAir

Shock

Fox Factory Float X, 205mm x 60mm

Travel150mm

Bottom Bracket

SRAM DUB MTB Wide, 73mm, BSA threaded

Stem

Bontrager Elite, 35mm, 0 degree, 45mm length

Handlebar

Race Face Turbine, alloy, 35mm, 40mm rise, 780mm width

Saddle

Verse Short Comp, steel rails, 145mm width

Seatpost

Bontrager Line Dropper, 150mm travel, MaxFlow, internal routing, 34.9mm, 410mm length - S: Bontrager Line Dropper, 150mm travel, MaxFlow, internal routing, 34.9mm, 410mm length; M: Bontrager Line Dropper, 170mm travel, MaxFlow, internal routing, 34.9mm, 450mm length; L, XL: Bontrager Line Dropper, 200mm travel, MaxFlow, internal routing, 34.9mm, 515mm length

TypeDropper

Grips

Trek Line Elite, lock-on

Groupset
Rear Derailleur

SRAM Eagle 90, T-Type

Crank

SRAM Eagle 90, DUB, 30T steel, T-Type, 55mm chainline, 170mm length

Shifters

SRAM Eagle 90, 12 speed

Cassette

SRAM Eagle XS-1275, T-Type, 10-52, 12 speed

Chain

SRAM GX Eagle, T-Type, 12 speed

Brakes

SRAM Maven Bronze 4-piston hydraulic disc

TypeSRAM Maven Bronze Hydraulic Disc

Wheels
Rims

Front: Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 29'', Rear: Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, SRAM XD freehub, Boost148, 12mm thru axle, 27.5''

Tires

Maxxis Assegai, tubeless ready, 3C, EXO+ casing, MAXXGRIP, folding bead, 29x2.5'', Maxxis part number ETB00313100 - S, M, L, XL: Maxxis Assegai, tubeless ready, 3C, EXO+ casing, MAXXGRIP, folding bead, 29x2.5''; S, M, L, XL: Maxxis Minion DHR II, tubeless ready, 3C, EXO+ casing, MAXXTERRA, folding bead, 27.5x2.5''

Disc Rotors

SRAM HS2 Brake Rotor, 200mm, 6-Bolt, Stainless Steel, SRAM Part Number 00.5018.174.002 - S, M, L, XL: SRAM HS2, 6-bolt, 200mm; S, M, L, XL: SRAM HS2, 6-bolt, 180mm

Rider Notes
Riders Also Viewed

First added August 9

Last updated June 23