2018 Trek

Fuel EX 9.9 29

A 29″ carbon frame full suspension trail bike with ultra high-end components.
Compare the full range

Manufacturer Price

$8,399
Weight26.3 lbs  
FrameCarbon
SuspensionFull, 130 / 130mm
ForkFox Factory Float 34
Wheels29″ Carbon
Drivetrain1 × 12
GroupsetXX1 Eagle
BrakesHydraulic Disc
SeatpostDropper
Top Comparison
Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Fuel EX 9.9 29
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)

28 mph

Fuel EX 9.9 29

26 mph

Similar Bikes

Highest gear

(descending)

Reviews
Outdoor Gear Lab
Trek Fuel EX 8

Nov 2019 · Jeremy Benson

The Fuel EX 8 is an impressively capable, versatile, and well-rounded trail bike that is ready for anything you are. Trek redesigned the Fuel EX models for...

Highs
  • Relatively affordable

  • Good component spec for the price

  • Great small bump compliance

  • Versatile/well-rounded

Lows
  • Frame sizing feels a little small

  • Can be overwhelmed in super aggressive terrain

Read Review

Mountain Bike Action
Throwback Thursday: Trek Fuel EX 9.9 29

Oct 2019 · McCoy

One seriously light and capable bike

Read Review

Pinkbike
Review: Trek's All-New 2020 Fuel EX Trail Bike

Aug 2019 · Mike Levy

Trek's trail bike gets an all-new frame with tweaked suspension and fresh geometry, but where does sit compared to the competition?

Highs
  • Forgiving, deep feeling suspension

  • It's a wizard on technical climbs

  • New geometry increases capabilities

Lows
  • It might be too forgiving for some riders

  • You'll be using the pedal assist lever often

  • Trek could have gone further with the geometry

Read Review

Flow Mountain Bike
TESTED: Trek Fuel EX 9.9

Jan 2019

Planning a trip to Derby late last year we were faced with a tough call to make, what bike should we take for someone who’s never been there before? The Fjord Lord, our friend from Terrengsykkel, Norway’s best mountain bike magazine was visiting, and he’s a great photographer and keen adventurer, but he was bike-less …

Highs
  • An ideal trail bike for adventures.

  • Buttery smooth suspension.

  • Holds its own in the black run trails.

Lows
  • Rattling brake pads.

  • Heavy thumb lever for dropper.

Read Review

Cyclist
Trek Fuel EX 5 full suspension MTB review

Oct 2018 · Joseph Delves

A great full-sus all-rounder with an innovative frame

Read Review

Loam Wolf
Review: Fuel EX 9.7 29

Jun 2018 · Nic “U-Turn” Hall

Without a doubt one of our favorite bikes in the budget bike roundup. The Trek Fuel EX 9.7 blends a refined look with affordable performance to offer you a killer mountain bike at a great value.

Read Review

MBR
Trek Fuel EX 9.7 29 (2018) review - MBR

May 2018 · Paul Burwell

You’re only looking at around 150g in weight saving over an aluminium frame, but the carbon fronted Trek Fuel EX 9.7 29 is easily the stiffest bike in those we tested.

Read Review

VeloNews
Trek Fuel EX 9.9

Mar 2018 · Emily Schaldach

The Trek Fuel EX 9.9 has redefined the do-everything mountain bike.

Read Review

Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Frame

OCLV Mountain Carbon main frame & stays, ABP, Boost148, Knock Block steerer stop, Full Floater, EVO link, E2 tapered head tube, Mino Link, Control Freak internal routing, Carbon Armor, PF92, ISCG 05, G2 Geometry, 130mm travel

BB StandardBB86/BB92, Press Fit

Fork

Fox Factory 34 Float, FIT4 3-position damper, E2 tapered steerer, Kashima Coat, G2 Geometry w/51mm offset, Boost110, 130mm travel

Travel130mm

Spring TypeAir

Bottom Bracket

PF92

Headset

FSA Knock Block IS-2, E2, sealed cartridge

Stem

Bontrager Line Pro, Knock Block, 35mm, 0 degree

Handlebar

Bontrager Line Pro, OCLV Carbon, 35mm, 15mm rise, 750mm width

Saddle

Bontrager Evoke RXL, carbon rails

Seatpost

Bontrager Drop Line, internal routing, 31.6mm (15.5: 100mm / 17.5 & 18.5: 125mm / 19.5 & 21.5: 150mm)

TypeDropper

Pedals

Not included

Grips

Bontrager Race Lite, lock-on

Groupset
Rear Derailleur

SRAM XX1 Eagle, Roller Bearing Clutch

Crank

SRAM XX1 Eagle, 32T Direct Mount X-Sync

Shifters

SRAM XX1 Eagle, 12 speed

Cassette

SRAM XG-1295, 10-50, 12 speed

Chain

SRAM XX1 Eagle

Brakes

SRAM Guide Ultimate carbon hydraulic disc

TypeHydraulic Disc

Wheels
Rims

Bontrager Line Pro 30, OCLV Carbon, Tubeless Ready, 108T Rapid Drive, Boost110 front, Boost148 rear, tubeless strips included, valves sold separately

Tires

Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 29x2.40˝

Rider Notes
Riders Also Viewed

Last updated February 15
Not listed for 2,312 days