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Trek
Trek Fuel EX 8 XT Gen 6 Full Suspension Mountain Bike 2025
Trek Fuel EX 8 XT Gen 6 Full Suspension Mountain Bike 2025
The Fuel EX 8 XT is an evolved trail bike, dialled for riders who chase down rowdy descents and want a bike that's happy to pedal back to the top and do it again. The lightweight alloy frame pairs with upgraded 12-speed Shimano XT drivetrain to keep shifting precise while a 150 mm FOX Rhythm fork with Float EVOL air spring cushions the blow from rocks and roots. In-frame storage and adjustable geometry give you all the perks that the come with the carbon model, but without the lofty price tag.
It's right for you if...
You want a full-suspension trail bike that floats over rough and technical terrain, and packs in plusses, like a root-slaying FOX Rhythm fork and Shimano's clean-shifting 12-speed XT drivetrain.
The tech you get
A light and stiff alloy frame with 150 mm FOX Rhythm fork with Float EVOL air spring and GRIP damper for small bump compliance, plus a FOX Performance Float X rear shock. A Shimano XT 12-speed drivetrain for snappy shifting and Tubeless-Ready Bontrager wheels. Plus, adjustable geometry that lets you take control of your set-up.
Why you'll love it
- The Fuel EX Gen 6 gives you 140/150 mm of travel with extra adjustability features and more stable handling, plus a more robust frame with internal storage
- You'll get upgraded components where it matters most, with 12-speed XT shifting and a rock-gobbling FOX Rhythm 36 fork
- With the adjustable angle headset (angled cups sold separately) and Mino Link, you can choose from six different geometry configurations
- The dropper post lets you lower your saddle on the fly so it's out of the way on descents
- We expanded our size range to ensure a better fit for all riders, and use the best-fitting wheels for each frame size: XS frames get 27.5˝ wheels, S frames get to choose between 27.5˝ or 29˝, and sizes M and up get 29˝ wheels
The final word
For the rider who doesn't want to be limited on the trail, the Fuel EX 8 is ready to handle everything. Its progressive trail geometry is built to keep you charging, and upgraded components are the cherry on top.
Frame | Alpha Platinum Aluminium, internal storage, angle-adjust headset, Mino Link adjustable geometry, adjustable leverage rate, guided internal routing, magnesium rocker link, 34.9 mm seat tube, ISCG 05, 55 mm chain line, BSA 73, downtube guard, shuttle guard, ABP, UDH, Boost148, 140 mm travel |
Rear shock | Fox Performance Float X, 2-position damper, 185 mm x 55 mm |
Fork | Fox Rhythm 36, Float EVOL air spring, GRIP damper, tapered steerer, 44 mm offset, Boost110, 15 mm Kabolt axle, 150mm travel (140mm travel on sizes XS, S) |
Shifters | Shimano XT M8100, 12-speed |
Rear derailleur | Shimano XT M8100, long cage |
Chainset | Shimano Deore M6120, 30T ring, 55 mm chainline, 170 mm length |
Bottom bracket | Shimano BB-MT501 BSA |
Chain | Shimano SLX M7100, 12-speed |
Cassette | Shimano XT M8100, 10-51, 12-speed |
Wheelset | Bontrager Line Comp 30, Tubeless Ready |
Hubs | 6-bolt, Boost110, 15 mm thru axle Rapid Drive 108, 6-bolt, Boost148, 12 mm thru axle |
Tyres | Bontrager XR5 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 60 tpi |
Brakes | Shimano 4-piston hydraulic disc, M6100 lever, M6120 calliper |
Handlebars | Bontrager Line, alloy, 35 mm, 27.5 mm rise |
Grips | Bontrager XR Trail Elite, nylon lock-on |
Stem | Bontrager Elite, 35 mm, 0-degree, 35 mm length |
Saddle | Bontrager Verse P3, chromoly rails |
Seatpost | TranzX JD-YSP39, internal routing, 34.9 mm Bontrager Line Dropper, MaxFlow, internal routing, 34.9 mm |
Pedals | None - SHOP PEDALS HERE |
Customer reviews
We aim to provide efficient delivery on all packages to mainland UK addresses. There are some areas where we will need to charge slightly more due to postage costs such as Highlands & Islands, Southern Ireland & Isle of Man.
Delivery is charged at £5.95 for standard delivery to UK mainland (see below for exceptions). Next working day delivery available for £6.95 if order before 1pm. Bikes are subject to £10.00 carriage charge. Exceptions can be found below. E-Bikes are subject to £30.00 carriage charge due to higher weight and value involved for insurance purposes.
Free delivery is available for orders over £75 and is a 2 working day service.
Orders placed before 12pm Monday to Thursday will be shipped the same day for next day delivery. Orders placed after 12pm Thursday and onwards will be shipped on Monday.
DUE TO THE CURRENT HIGH DEMAND, DELIVERY TIME FOR BIKES IS 7-10 DAYS. ALL PARTS AND ACCESSORIES ARE STILL 1-2 DAYS.
We use DPD for all our shipments:
DPD offer an excellent delivery service, with full tracking information and an hour time slot given on the day of delivery. You can also change the destination of your parcel, including local drop off points.
*Saturday delivery can be arranged at extra cost, please call for details.
SHIPPING EXCEPTIONS & SURCHARGES
Unfortunately due to the policies of our chosen shipping companies we regret that we will have to apply a separate charge to selected postcodes in the UK for some of our packages. If we need to apply this charge we will contact you after your order has been placed and work out the extra shipping charge. We do ship outwith the UK, please contact us for prices and options.
NORTHERN IRELAND POSTCODE SHIPPING EXCEPTIONS
Postcodes in Northern Ireland will carry a further charge for shipping, please contact for more details and prices.
ABERDEENSHIRE POSTCODE SHIPPING EXCEPTIONS
Postcodes in Aberdeenshire carry a further charge for large item shipping.
OUTER HEBRIDES POSTCODE SHIPPING EXCEPTIONS
Postcodes in the Outer Hebrides will carry a further charge for large item shipping, please contact for more details and prices.
INVERNESSHIRE POSTCODE SHIPPING EXCEPTIONS
Postcodes in Invernesshire carry a further charge for large item shipping.
KIRKWALL AREA POSTCODE SHIPPING EXCEPTIONS
Postcodes in the Kirkwall area carry a further charge for large item shipping shipping.
PAISLEY (WESTERN ISLES) POSTCODE SHIPPING EXCEPTIONS
Postcodes ranging from PA20 - PA80 in the Paisley & Western Isles will carry a further charge for large item shipping, please contact for more details and prices.
SHETLAND ISLES AREA SHIPPING EXCEPTIONS
Postcode within the Shetland Isles will carry a further charge for large item shipping, please contact for more details and prices.