2025 Trek Fuel EX 8 XT Gen 6 Full Suspension Mountain Bike
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The 2025 Trek Fuel EX 8 XT Gen 6 Full Suspension Mountain Bike S SATIN MERCURY is available at the following locations.
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The 2025 Trek Fuel EX 8 XT Gen 6 Full Suspension Mountain Bike 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 Fuel EX 8 is built around a light and stiff aluminium frame. You can customise the ride with the adjustable angle headset (angled cups sold separately) and Mino Link which lets you choose from six different geometry configurations. Suspension comes from a 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.
This bike is perfect for
Mountain bikers who don'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.
Key Features
- 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
- Expanded size range to ensure a better fit for all riders, and use the best-fitting wheels for each frame size: XS and Small frames get 27.5˝ wheels, and sizes M and up get 29˝ wheels
Mountain Bike Buying Guide
Mountain biking is an incredibly diverse sport. Mountain bikes now come in three main flavours. They are XC, Trail and Enduro.
XC – short for cross country, are quick race bikes. They will normally have 29” wheels and come with 100mm of suspension. If you are mainly going to be riding bridleways and natural trails in the South East of England, where our shops are, an XC bike will be the quickest and most efficient option.
Trail – these bikes are designed to be pedalled up and down hill and for use on bridleways and natural trails, but also at dedicated trail centres. They normally come with 130mm or 140mm of suspension travel and can have either 27.5” or 29” wheels, but 29” is quickly becoming the norm. Trail bikes are good all-rounders. They won’t be as fast as an XC bike on the flat but they can handle a lot more challenging terrain, and a few jumps. If you plan on taking your bike to trail centres in Wales, or to the Alps, then a trail bike may be your best option.
Enduro – enduro racing is a thing in and of itself but many people buy enduro bikes for ‘aggressive’ trail riding and uplift days at places like Bike Park Wales. This generally means challenging downhill trails with some big jumps. With around 160mm of suspension travel enduro bikes can take some big hits. They are designed to be efficient enough to pedal up hills but really come into their own when pointed downhill. You get enduro bikes in either 27.5” or 29” wheel sizes as well as mullet setups of 29 at the front and 27.5 at the back.
Men’s and women’s mountain bikes
Nearly all the mountain bikes we sell are now unisex. All of the big brands have gradually stopped doing dedicated men’s and women’s bikes over the last few years. Instead they are focussed on producing bikes in a bigger range of sizes. So, for instance, the Trek Marlin 5 is a unisex bike that now comes in sizes from XXS to XXL large. This means it will fit riders from 4’ 5” to 6’ 5” and everything in between.
Read our full mountain bike buyers guide
Price Match at Cycles uk
We understand that price is important, so we regularly price-check our competitors to make sure we have the best offers available. We recognise that we will not always be the cheapest, so if you see the same product cheaper from any of our competitors then please get in touch via the form below and we will do our best to match any reasonable advertised price.
Trek made their first bikes in 1976 in a barn in Wisconsin. Now they’re one of the biggest bike brands in the world. Trek bikes cover everything from professional-level road and mountain bike race bikes to commuters, hybrids and kids bikes. There is a strong heritage of racing at Trek and many Trek bikes have a strong race influence. They take a very scientific approach to researching bike and human performance and then make the fastest and most efficient bikes they can.
It doesn’t stop their attention and passion for cycling flows through everything they do. Since the 1990s, Trek has supported Places for Bikes. Places for Bikes is an advocacy organisation in the USA that gets more people on bikes more often! Places for Bikes ethos falls in line with the companies mission statement to:
Build only products we love. Provide incredible hospitality to our customers, and change the world by getting more people on bikes.
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
Fork - Size: XS , S - Fox Rhythm 36, Float EVOL air spring, GRIP damper, tapered steerer, 44 mm offset, Boost110, 15 mm Kabolt axle, 140 mm travel. Size: M , ML , L , XL , XXL - Fox Rhythm 36, Float EVOL air spring, GRIP damper, tapered steerer, 44 mm offset, Boost110, 15 mm Kabolt axle, 150 mm travel
Shock - Fox Performance Float X, 2-position damper, 185 mm x 55 mm
Max compatible fork travel - 160mm
Wheel front - Size: XS , S - Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle, 27.5". Size: M , ML , L , XL , XXL - Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle, 29"
Wheel rear - Size: XS , S - Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12 mm thru axle, 27.5". Size: M , ML , L , XL , XXL - Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12 mm thru axle, 29"
Skewer rear - Bontrager Switch thru-axle, removable lever
Tyre - Size: XS , S - Bontrager XR5 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 60 tpi, 27.5 x 2.50". Size: M , ML , L , XL , XXL - Bontrager XR5 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 60 tpi, 29x2.50"
Tyre part - Bontrager TLR sealant, 180 ml/6 oz
Shifter - Shimano XT M8100, 12-speed
Rear derailleur - Shimano XT M8100, long cage
Crank - Shimano Deore M6120, 30T ring, 55 mm chainline, 170 mm length
Bottom bracket - Shimano BB-MT501 BSA
Cassette - Shimano XT M8100, 10-51, 12-speed
Chain - Shimano SLX M7100, 12-speed
Saddle - Bontrager Verse P3, chromoly rails
Seatpost - Bontrager Line Dropper, MaxFlow, internal routing, 34.9 mm
Handlebar - Bontrager Line, alloy, 35 mm, 27.5 mm rise
Grips - Bontrager XR Trail Elite, nylon lock-on
Stem - Bontrager Elite, 35 mm, 0-degree
Brake - Shimano 4-piston hydraulic disc, M6100 lever, M6120 calliper
Brake rotor - Shimano RT66, 6-bolt
Weight - Medium size - 15.91 kg / 35.08 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).
| Colours | NAUTICAL NAVY, SATIN MERCURY |
| Sizes | L, M, ML, S, XL, XS, XXL |
| Brand | Trek |
| Model Year | 2025 |
| Barcodes | 768682148150, 768682148174, 768682148198, 768682148211, 768682148259, 768682148297, 768682148334, 768682148396, 768682148419, 768682148495, 768682148518, 768682148532, 768682148556, 768682148570 |
| SKUs / Part Numbers | 5296747, 5296748, 5296750, 5296751, 5296752, 5296753, 5296754, 5296755, 5296756, 5296758, 5296759, 5296760, 5296761, 5296762 |
Please note: Manufacturers can sometimes change the specification of the products from time to time.
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Comfort Guarantee
Opinions of contact points such as saddles, shoes and grips can vary a lot between different riders. If you buy a contact point from Cycles UK and you don’t find it comfortable, you can return it within 30 days, and we’ll swap it for something else.
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24 Month Representative Example:
Purchase Price (incl. VAT) £750
Deposit £75
Loan Amount £675
Interest/Total Charge for Credit £109.32
Total Amount Repayable £859.32
Balance Payable £784.32
By 24 Monthly Repayments of £32.68
15.9% APR Representative
Bank rate of interest 8.1% PA fixed
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