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2017 Trek

Fuel EX 29 Carbon Frameset

A 29″ carbon frame full suspension trail frameset.

Manufacturer Price

$3,299
Weight5.6 lbs (frame)  
FrameCarbon
SuspensionFull, 130mm rear
ShockFox
Wheels29″
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Insights
Sizing
15.5"

5'0" – 5'7"

17.5"

5'5" – 5'11"

🐐 Estimated

Rider Fit Notes

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Reviews

Summary

The Trek Fuel mountain youth bike is praised for its versatile and light trail capabilities, offering a balanced and maneuverable feel suitable for various terrains. Its suspension performance, particularly the RE:aktiv shock with Thru Shaft technology, is highlighted for reducing lag and improving ride quality. However, some reviews note it may be too conservative for aggressive riders and could benefit from a longer dropper post and more aggressive tires.

Pros
  • Versatile and light trail bike

  • Quick-responding ABP suspension platform

  • RE:aktiv shock with Thru Shaft technology

  • Balanced and maneuverable feel

  • Superb rear-wheel traction

Cons
  • Too conservative for some riders

  • Would benefit from a longer dropper post

  • Bontrager XR4 tires' side knobs felt under-gunned

Key Quotes
The Fuel isn’t the biggest and baddest bike of the test. Instead it focuses on being the do-everything quiver killer.
BIKE Magazine logoBIKE Magazine
Imagine taking the heart of an XC race bike and giving it the soul of a trail bike and you’d have the Fuel EX.
Bikerumor logoBikerumor
Not the quickest climber, but clever suspension and geometry provide a fun, fast and capable ride
BikeRadar logoBikeRadar

Feedback?

View all reviews

Cyclist
Trek Fuel EX 5 full suspension MTB review

Oct 2018 · Joseph Delves

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

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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.

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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.

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VeloNews
Trek Fuel EX 9.9

Mar 2018 · Emily Schaldach

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

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Enduro Mountainbike Magazine
Trek Fuel EX 9.9 29 review

Dec 2017 · Christoph Bayer

The Trek Fuel EX 9.9 29 had a lot to lose, as it was defending its title in this comparison. In our last group test, the bike secured the coveted top spot. Since then, Trek has fundamentally reworked the shock – was it enough to win again?

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off.road.cc
Trek Fuel EX 5 Women’s 27.5 Plus

Nov 2017

While this Trek Fuel EX 5 may look like a roller skate on wheels, complete with disco-tastic 'anthracite' metallic grey finish and chunky platform shoes reminiscent of the Spice Girls’ heyday, it does cover a particular niche between ‘trail’ and ‘cross-country’, and it does it very well on a respectable budget. Review: Banshee Phantom GX - a short travel machine with hardcore intentions Buying your first mountain bike?

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Freehub
2017 Trek Fuel EX 9.8 // Bike Review

Nov 2017 · Will Hilbert

Take a look at the new Fuel EX and you will quickly see Trek has fully redefined the model. The 2016 Fuel Ex 29 was a step in the right direction, but it was a timid half-hearted step that left the rider wondering what if…? What if it came spec’d with a stiffer fork, more travel and a slacker headtube? The team at Trek delivered and the 2017 bike answers these questions. It now allows the use of 29” or 27.5+ wheels and is one of the stiffest frames in the category, featuring a totally new geometry that’s slacker and longer than its predecessor.

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BikeRadar
Trek Fuel EX 9 29 review

May 2017 · Seb Stott

Not the quickest climber, but clever suspension and geometry provide a fun, fast and capable ride. Buy if you're not competing for uphill KOMs, but want a relatively rapid and comfy all-day mile-muncher that can be ridden really hard too

Highs
  • Great geometry and kit encourage aggressive riding

  • Comfortable and fast on rolling terrain

Lows
  • Seat angle could be steeper for climbing

  • Not the lightest

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Geometry
Specs
Build
Frame

OCLV Mountain Carbon main frame & 1x-specific 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

Shock

Fox Factory Float EVOL, RE:aktiv 3-position damper, Kashima Coat, tuned by Trek Suspension Lab, 210x52.5mm

Travel130mm

Bottom Bracket

BB86/BB92, press-fit

Headset

Knock Block Integrated, cartridge bearing, sealed, 1-1/8" top, 1.5" bottom

Stem

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

Rider Notes
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First added April 12

Last updated July 21

Not listed for 3,234 days