2023 Trek Top Fuel 9.8 XT Full Suspension Mountain Bike

£6,025.00

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The 2023 Trek Top Fuel 9.8 is a full suspension carbon mountain bike for riders who don't settle. Not for parts nor for one style of riding. It combines a high-end component package with a low-weight carbon frame for one unbelievably fun rig that's fast on flow and fun to ride on techy singletrack.

A light and stiff full carbon frame, 130 mm RockShox Pike Select+ fork, 120 mm of rear travel with a RockShox Deluxe Ultimate RCT shock and a new Shimano XT 1x12 drivetrain. Plus, wide carbon Bontrager Line Elite 30 wheels with a 108-tooth Rapid Drive hub for instant engagement, 4-piston brakes for confident descents, Bontrager Line Elite Dropper and carbon handlebars.

Top Fuel 9.8 is a ridiculously fun carbon down-country bike with upgraded parts that give you noticeable benefits on the trail, like more speed from the carbon wheels and more grip from the ultra-smooth suspension.


  • Wider Line Elite 30 wheels provide better tyre support so you can run lower pressure and get more traction
  • A sleek internal storage compartment gives you a versatile spot to stow tools and gear
  • This bike’s killer suspension set-up is both efficient and ready to party
  • New, removable Knock Block has a bigger steering angle to keep cables and hoses safe without sacrificing turning radius

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

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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 OCLV Mountain Carbon, internal storage, tapered head tube, Knock Block 2.0, internal guided routing, downtube guard, magnesium rocker link, Mino Link, ABP, Boost148, 120 mm travel
Fork RockShox Pike Select+, DebonAir spring, Charger 3 RC2 damper, tapered steerer, 44 mm offset, Boost110, 15 mm Maxle Stealth, 130 mm travel
Gears Shimano XT M8100, long cage, 1 Gears
Rear Brake Shimano XT M8120 4-piston hydraulic disc // Shimano XT M8120 4-piston hydraulic disc Shimano RT76, 6-bolt, 160 mm // Shimano RT76, 6-bolt, 180 mm Max brake rotor size, Disc brake with hydraulic actuation
Front Brake Shimano XT M8120 4-piston hydraulic disc // Shimano XT M8120 4-piston hydraulic disc Shimano RT76, 6-bolt, 160 mm // Shimano RT76, 6-bolt, 180 mm Max brake rotor size, Disc brake with hydraulic actuation
Tyres Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 29.x2.40"
Rear Derailleur Shimano XT M8100, long cage
Crankset Shimano XT M8120, 30T, 55Â mm chainline, 170Â mm length
Shifters Shimano XT M8100, 12-speed
Chain Shimano Ultegra/XT M8100, 12-speed
Casette Shimano XT M8100, 10-51, 12-speed
Headset Knock Block 2.0 Integrated, 72-degree radius (includes infinite-radius chip), sealed cartridge bearing, 1-1/8" top, 1.5" bottom
Handlebar Bontrager Line Pro, OCLV Carbon, 35 mm, 27.5 mm rise, 780 mm width
Stem Bontrager Line Pro, 35 mm, Knock Block, Blendr-compatible, 0-degree, 45 mm length
Bartape / Grips Bontrager XR Trail Elite, nylon lock-on
Seatpost Bontrager Line Elite Dropper, 150Â mm travel, MaxFlow, internal routing, 34.9Â mm, 440Â mm length
Saddle Bontrager Arvada, austenite rails, 138 mm width
Wheels Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15Â mm thru axle Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost 148, 12Â mm thru axle, 29' Wheel Size
Front Light
Rear Light
Kickstand
Colours MATTE RAW CARBON, PENNYFLAKE, SATIN BAJA YELLOW
Sizes L - 29 WHEEL, M - 29 WHEEL, M/L - 29 WHEEL, S - 29 WHEEL, XL - 29 WHEEL
Brand Trek
Model Year 2023
Barcodes 601842762806, 601842762813, 601842762820, 601842762837, 601842762844, 601842762851, 601842762868, 601842762875, 601842762882, 601842762899, 601842762905, 601842762912, 601842762929, 601842762936, 601842762943
SKUs / Part Numbers 5275133, 5275134, 5275135, 5275136, 5275137, 5275138, 5275139, 5275140, 5275141, 5275142, 5275143, 5275144, 5275145, 5275146, 5275147

Please note: Manufacturers can sometimes change the specification of the products from time to time.

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