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Trek Fuel EX 9.8 29" Disc Mountain Bike

★★★★★ ★★★★★
MSP £4,500.00 Save 20%
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Product ID: 1042402

Many trail bikes claim to "do it all", but few can carry it off like the full carbon Trek Fuel EX 9.8 29" Mountain Bike.

Confidently negotiate turbulent trails with the Fox Performance suspension and RE:aktiv shock, cruise high speed corners with steep berms, carry pace into punchy climbs and drop the seat post for sketchy descents, this bike really does have the tech to support you through it all. A 1x12 SRAM GX Eagle drivetrain with plenty of range in the 10-50t cassette keeps the gears sharp and the assured Bontrager carbon wheels are stiff with loads of traction to keep you pinned to the trail.

Four great reasons to buy your bike from Sigma Sports

sigma sports expert advice and rider id
Expert Advice & Rider ID

Sigma Sports has one objective - to help you find your perfect bike. Our friendly, knowledgeable staff ask you a series of questions to understand what type of rider you are and the type of riding you do. We can then identify the style of bike that best suits your needs.

sigma sports finding the right bike size
Finding the right size

Riding a bike that fits you perfectly will help keep you injury-free and ensure you enjoy riding further for longer in total comfort. We check your measurements on a jig to ensure your optimal set-up.

sigma sports bike handover
Bike Handover

When you collect your new bike we'll double-check your position and make any micro-adjustments if required. We'll also discuss the controls on your bike as well as maintenance tips.

sigma sports first free safety check
First free safety check

We offer a free safety check after six weeks or 200 miles, so you can keep riding in confidence. Visit us now in-store to discuss your new bike.

Trek Fuel EX 9.8 29" Disc Mountain Bike

A special bike for all occasions, the Trek Fuel EX 9.8 29" Mountain Bike has the versatility and capability to feel controlled and fast over even some of the rowdiest trails. A lightweight OCLV carbon frame, Trek's own construction, uses a unique material lay-up in important areas for enhanced toughness, and in the highest impact areas for rock and debris strikes, like under the down tube, there is carbon armour to keep your frame looking as good as new.

130mm travel from the Fox Performance 34 Float fork keeps the front of the bike flowing and combined with the 29" Bontrager Line Carbon 30 wheels you will carry momentum over any obstacles, first time. At the rear, there's a Fox Performance Float shock that uses Trek's intelligent RE:aktiv thru shaft suspension control, enabling the back of the bike to keep up with the terrain with no lag in the shock response. In short, the compression and rebound are smoother, so you stick to the trail better.

The 54-tooth rapid drive hub delivers instant engagement when you need to keep the chain tight or are negotiating technical obstacles and it combines perfectly with the 1x12 SRAM GX Eagle drivetrain. The Mino Link adjustable geometry lets you fine-tune the ride feel by slackening the head angle and dropping the bottom bracket height to suit your style, and thanks to the Straight Shot frame design of the down tube the stiffness, strength and, ultimately, power transfer are top line.


  • Trek OCLV Carbon frame
  • Active Braking Pivot enables continuous suspension performance even under heavy braking
  • Control Freak Cable Management keeps cables away from dirt, quiet and easy to maintain
  • 1x12 GX Eagle Drivetrain
  • Bontrager Line Dropper Seat Post for when descents require you to put weight right over the back wheel

Technical Specification

FRAME Trek OCLV Mountain Carbon main frame & seatstay, alloy chainstay, ABP, Boost148, Knock Block steerer stop, Full Floater, EVO link, tapered head tube, Mino Link, Control Freak internal routing, Carbon Armor, PF92, ISCG 05, G2 Geometry, 130mm travel
FRONT SUSPENSION Fox Performance 34 Float, GRIP 3-position damper, tapered steerer, G2 Geometry with 51mm offset, Boost110, 130mm travel
REAR SUSPENSION Fox Performance Float EVOL, RE
STEM Bontrager Line Pro, Knock Block, 35mm clamp, 0-degree
HANDLEBAR Bontrager Line Pro, OCLV Carbon, 35mm, 15mm rise, 750mm width
GRIPS Bontrager XR Trail Elite, alloy lock-on
FRONT BRAKE Shimano SLX M7000 hydraulic disc
REAR BRAKE Shimano SLX M7000 hydraulic disc
REAR DERAILLEUR SRAM GX Eagle, Roller Bearing Clutch
SHIFT LEVERS SRAM GX Eagle, 12-speed
CASSETTE SRAM XG-1275 Eagle, 10-50t, 12-speed
CRANKSET Truvativ Descendant 7k Eagle DUB, 32T Direct Mount
FRONT WHEEL Bontrager Line Carbon 30, Tubeless Ready, 54T Rapid Drive, Boost110 front, Boost148 rear
REAR WHEEL Bontrager Line Carbon 30, Tubeless Ready, 54T Rapid Drive, Boost110 front, Boost148 rear
FRONT TYRE Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, 120tpi, aramid bead, 29x2.40˝
REAR TYRE Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, 120tpi, aramid bead, 29x2.40˝
SADDLE Bontrager Arvada, austenite rails
SEATPOST Bontrager Line, internal routing, 31.6 mm, 15.5
WEIGHT 12.70 kilos (size 17.5")

Built, Checked, Tuned and Tested

All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools.

To see how you build your new bike once you receive it, please see our bike assembly page here.

Please note all bikes collected from our shop, are built, tested and ready to ride.

Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. We do not install accessories to bikes, including mudguards.

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