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Fuel EX 8 Gen 5 2023 | DEMO

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This is a DEMO bike, which has been ridden before and may show signs of use. It may feature cosmetic damage, but is in perfect riding condition with all necessary parts updated.

To read more on how we measure the condition of our Certified Used bikes, check out our Certified Used Bike information page.

Trek's Fuel EX continues to set the bar for full suspension trail bike versatility, bringing race-day tech to all-day adventure. If you are looking for a rugged, capable mid-travel trail bike with XC efficiency, this is the bike for you.

Traditionally, the Fuel EX8 was offered with Sram's GX groupset. For 2021, Trek offers a Shimano alternative, in the form of the all-new XT 12-speed MTB groupset. Combined with the Fox Rhythm 34 fork and Performance float EVOL rear shock at 140/130mm of travel respectively, this makes the Fuel EX8 the most capable version of the series up to date.

The lightweight Alpha Platinum aluminium frame with internal cable routing features a Straight Shot down tube for a greater stiffness as well as a Knock Block steerer stop to protect against spinning bars. Boost148/110 offers for stronger wheels, more tire clearance, shorter stays.

This model comes in a smart wheelset option, where 27'5" wheels are offered on XS ans S frames, and 29" wheels are offered in S-XL sizes. Smaller frames (XS&S) have a top tube that dips down as it approaches the seat tube, ideal for shorter riders.

  • Shimano XT 12 Speed MTB 10-51 groupset
  • XS-S frames with 27.5" wheels
  • S-XL frames with 29" wheels
  • Tubeless Ready
  • Mino Link adjustable geometry
  • Alpha Platinum Aluminum
  • Control Freak cable management
  • Boost148/110
  • Front suspension: 140mm Fox Rhythm 34 fork
  • Rear shock: Fox Performance Float EVOL with 130mm of travel
AdvertisedCertified pre-owned bicycles
Frame MaterialAluminum
Wheel Size29 inches
Brake LeversShimano MT4100
BrakesShimano MT420
ChainShimano SLX M7100
Brake TypeDisc
Recommended UseTrail
SuspensionFull suspension
Fork Travel130mm - 140mm
CranksetShimano SLX M7100 30T
ForkFox Rhtythm 34 140 mm Boost110
FrameAlpha Platinum Aluminum, tapered head tube, Knock Block, Control Freak internal routing, downtube guard, ISCG 05, magnesium rocker link, Mino Link, ABP, Boost148, 130mm travel
HandlebarsBontrager Line, alloy, 35 mm
CassetteShimano XT M8100, 10-51
Rear DerailleurShimano XT M8100
Rear ShockFox Performance Float EVOL RE:aktiv
Rims/WheelsBontrager Line Comp 30, Tubeless Ready
SaddleBontrager Arvada
SeatpostBontrager Line Dropper Post
ShiftersShimano XT M8100
StemBontrager Line, 35 mm, Knock Block
Tape/GripsBontrager XR Trail Elite
TiresBontrager XR4 Team Issue, Tubeless Ready 29x2.6
WeightM - 13.78 kg / 30.39 lbs (Tubeless)

We reserve the right to modify the information contained on this site at any time without notice, in particular regarding equipment, specifications, models, colors and materials.

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