2023 Trek Fuel EX 8 Gen 6 Full Suspension Mountain Bike
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The 2023 Trek Fuel EX 8 is a dialled trail bike for riders who chase down rowdy descents and want a bike that's happy to pedal back to the top and do it again. It has a stout alloy frame and an upgraded Shimano XT drivetrain for smooth precise shifting. The 150 mm Fox Rhythm fork makes easy work of rocks and roots while the Fox Float X shock keeps you in control. New in-frame storage and adjustable geometry give you all the perks that come with the carbon model, but without the lofty price tag.
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, new adjustable geometry that lets you take control of your set-up.
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 they cherry on top.
- This bike is built to take on the singletrack, with modern geometry that's evolved to handle the rough and rowdy
- 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
- 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
- Guided internal routing, universal derailleur hanger, improved hardware and a threaded BB make maintenance a breeze
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
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.
Please note: Manufacturers can sometimes change the specification of the products from time to time.
| Colours | GALACTIC GREY TO BLACK FADE, MATTE PENNYFLAKE |
| Sizes | L - 29 WHEEL, M - 29 WHEEL, ML - 29 WHEEL, S - 27.5 WHEEL, S - 29 WHEEL, XL - 29 WHEEL, XS - 27.5 WHEEL, XXL - 29 WHEEL |
| Brand | Trek |
| Model Year | 2023 |
| Barcodes | 601842739747, 601842739754, 601842739761, 601842739778, 601842739785, 601842739792, 601842739808, 601842739815, 601842739822, 601842739839, 601842739846, 601842739853, 601842739860, 601842739877, 601842739884, 601842739891 |
| SKUs / Part Numbers | 5272042, 5272043, 5272044, 5272045, 5272046, 5272047, 5272048, 5272049, 5272050, 5272051, 5272052, 5272053, 5272054, 5272055, 5272056, 5272057 |
Why buy from Cycles UK?
We Deliver
You can choose how to receive your new bike. You can click and collect from our stores, pick a fast courier delivery or premium hand delivery. Whichever option you choose your bike will be fully assembled and checked by one of our experienced mechanics.
Price Promise
We regularly check our prices against our competitors to ensure that you are getting a good deal. If you find an item cheaper within seven days of purchase, just let us know and ask us to match the price.
Free Insurance
Cycles UK provides 14 days of free insurance on all new bikes sold to UK customers. As part of our service, your new bike is automatically covered with 14 days’ FREE insurance against theft and accidental damage.
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.
Trek Mountain Bike Size Guide
On most Trek mountain bikes the XS and S sizes will come with a 27.5" wheel while the M and above will come with a 29" wheel. The XXS size is generally a 26" wheel.
| Size | XXS | XS | S | M | M/L | L | XL | XXL |
| Rider Height (CM) | 134.6 - 144.7 | 145 - 154.6 | 155 - 164.75 | 165 - 172.5 | 172.75 - 180 | 180.25 - 187.75 | 188 - 195.25 | 195.5 - 203.25 |
| Rider Height (Feet and Inches) | 4' 4" - 4' 9.0" | 4' 9.1" - 5' 0.9" | 5' 1.0" - 5' 4.9" | 5' 5.0" - 5' 7.9" | 5' 8.0" - 5' 10.9" | 5' 11" - 6' 1.9" | 6' 2" - 6' 4.9" | 6' 5" - 6' 8" |
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