Fuel EX 8 is the ideal trail bike for riders who want a versatile full suspension ripper that makes soul-crushing climbs less painful, but can also huck rowdy trails. It hits the sweet spot of value and performance in our mountain bike line-up by combining high-end parts with a stout but light alloy frame.
 Model 1044454
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An alloy frame, 140 mm FOX Rhythm 34 fork and 130 mm of rear travel with an extra-efficient RE:aktiv damper. A Shimano XT 1×12 drivetrain with an extra-low 51-tooth climbing gear, powerful 4-piston brakes, Bontrager wheels with a 54-tooth Rapid Drive hub for fast engagement plus a Bontrager Line dropper post.
Fuel EX 8 gives you added efficiency with Shimano’s latest, widest-range drive train and Trek’s unique RE:aktiv damper that provides firm pedalling support without giving up any plush compliance.
Active Braking Pivot allows our engineers to tune how the suspension reacts to acceleration and braking forces independently. That means you get more confident control when you need it most.
RE:aktiv technology gives you firm support for efficient pedaling that instantly gives way for smooth control when the trail turns rough.
Trek’s Straight Shot frame design optimises the stiffness-to-weight ratio for a more responsive ride. You’ll be able to push harder and stay more planted on your line when the going gets rough.
*spec applies to all sizes unless otherwise noted
|Frame||Alpha Platinum Aluminium, tapered head tube, Knock Block, Control Freak internal routing, downtube guard, ISCG 05, magnesium rocker link, Mino Link, ABP, Boost148, 130 mm travel|
|Fork||Fox Rhythm 34, Float EVOL air spring, GRIP damper, tapered steerer, 44 mm offset, Boost110, 15 mm Kabolt axle, 140 mm travel|
|Shock||Fox Performance Float EVOL, 3-position RE:aktiv damper, tuned by Trek Suspension Lab, 210 mm x 55 mm|
|Max compatible fork travel||150mm (561mm axle-to-crown)|
|Wheel front||Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle|
|Wheel rear||Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12 mm thru axle|
|Skewer rear||Bontrager Switch thru-axle, removable lever|
|Rim||Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle|
|Tyre||Bontrager XR5 Team Issue, Tubeless Ready, aramid bead, 120 tpi, 29×2.50″|
|Tyre part||Bontrager TLR sealant, 180 ml/6 oz|
|Rim strip||Bontrager TLR|
|Max tyre size||Frame: 29×2.60″ Fork: See manufacturer|
|Shifter||Shimano XT M8100, 12-speed|
|Rear derailleur||Shimano XT M8100, long cage|
|Crank||Shimano SLX M7100, 30T alloy ring, 52 mm chainline, 170 mm length|
|Bottom bracket||Shimano MT500, 92 mm, PressFit|
|Cassette||Shimano XT M8100, 10-51, 12-speed|
|Chain||Shimano SLX M7100, 12-speed|
|Max. chainring size||34T|
|Saddle||Bontrager Arvada, hollow chromoly rails, 138 mm width|
|Seatpost||Bontrager Line Dropper, 100 mm travel, internal routing, 31.6 mm, 345 mm length|
|Handlebar||Bontrager Line, alloy, 35 mm, 27.5 mm rise, 750 mm width|
|Grips||Bontrager XR Trail Elite, nylon lock-on|
|Stem||Bontrager Elite, 35 mm, 0-degree, 35 mm length|
|Head set||Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8″ top, 1.5″ bottom|
Shimano hydraulic disc, MT4100 lever, MT420 4-piston calliper
Shimano 4-piston hydraulic disc, MT4100 lever, MT420 calliper
|Brake rotor||Shimano RT66, 6-bolt, 180mm|
|Weight||M – 13.86 kg / 30.56 lbs (with TLR sealant, no tubes)|
|Weight limit||This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).|
Proper bike fit is essential for best performance and comfort. Any size and geometry measurements shown on archcycles.com are for general comparison purposes only. To find your perfect fit, visit an authorised retailer, where an expert skilled at sizing will help you find the appropriate bike and size for your individual needs.
All measurements provided in cm unless otherwise stated.
2022 Fuel EX 8