The Fuel EX 8 is a Trail Ruler

This bike is a rugged, capable long-travel trail bike with the alert manners of an XC bike. The Fuel EX blends the best of both worlds in one uncompromising package.

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The Fuel EX 8 is a super fast, fun, smooth machine. While it climbs willingly and quick, on the descent, it handles the grade, corners, and technical challenges with grace.

Key features

  • New 130mm frame is more capable and 29" or 27.5+ compatible
  • Boost148/110: stronger wheels, more tire clearance, shorter stays
  • Exclusive suspension tech with ABP, Full Floater & RE:aktiv
  • Straight Shot stiffness, Knock Block frame defense


  • FramesetFrameAlpha Platinum Aluminum, ABP, Boost148, Knock Block steerer stop, Full Floater, EVO link, E2 tapered head tube, Mino Link, Control Freak internal routing, down tube guard, PF92, ISCG 05, G2 Geometry, 130mm travelFront suspensionFox Rhythm 34 Float, Grip adjustable damper, E2 tapered steerer, Boost110, G2 Geometry w/51mm offset, 140mm travelRear suspensionFox Performance Float EVOL, RE:aktiv 3-position damper, tuned by Trek Suspension Lab, 210x52.5mm
  • WheelsWheelsBontrager sealed bearing hubs, alloy axle Boost110 front, Boost148 rear; SUNringlé Duroc 40 SL 28-hole rims (tubeless strips and valves included)Front HubBontrager sealed bearing, alloy axle, Boost110Rear HubBontrager sealed bearing, Boost148RimsSUNringlé Duroc 40 SL 28-hole (tubeless strips and valves included)TiresBontrager Chupacabra, Tubeless Ready, Inner Strength sidewalls, aramid bead, 27.5x2.80"
  • DrivetrainShiftersSRAM GX, 11 speedRear derailleurSRAM GX, Roller Bearing ClutchCrankSRAM GX 1000, 32T X-SyncBottom bracketPF92CassetteSRAM XG-1150, 10-42, 11 speedChainSRAM PC 1130
  • ComponentsSaddleBontrager Evoke 2, chromoly railsSeatpostKS eThirty Integra, remote lever, 2-bolt head, 31.6mm, zero offset, internal routingHandlebarBontrager Line, 35mm, 15mm rise, 750mm widthGripsBontrager Race Lite, lock-onStemBontrager Line, Knock Block, 35mm, 0 degreeHeadsetKnock Block Integrated, cartridge bearing, sealed, 1-1/8" top, 1.5" bottomBrakesetShimano Deore hydraulic disc
  • WeightWeight17.5" - 14.15 kg / 31.20 lbs