Why buy your bike from Sigma Sports?
Don't hesitate to reach out to us. It's our goal to answer all of your questions and offer the best advice from our experts. We’ll be happy to answer any questions you may have. Contact us now or visit us in-store.
All our bikes are fully built by our Cytech qualified mechanics. To find out more, see the Built, Checked, Tuned and Tested section below to see how we'll deliver your bike.
We offer FREE DELIVERY of your bike to your home or place of work. Once you've placed your order, our Customer Care team will be in contact to offer a convenient delivery date of your choice.
We've partnered with PedalSure to offer you 30-DAYS FREE bike insurance on new bikes over £400. Visit our Cycle Insurance page to learn more and claim.
Trek Fuel EX 9.8 GX 27.5" Mountain Bike 2020
The Trek Fuel EX 9.8 GX Eagle 27.5" Mountain Bike has been designed to be highly versatile, able to take on almost anything that the trail can throw at it from techy descents to marathon rides. The carbon frame has 130mm of travel and features the Mino Link chip which can be swapped over to slacken the bike’s geometry if so desired. It also has Knock Block frame protection, internal cable routing and BITS integrated storage for a sleek aesthetic.
Both the rear shock and the fork are FOX Performance FLOAT EVOL units to provide a balanced ride feel and tunability, with the fork offering 140mm of travel. Boost dropout spacing helps keep the Line Carbon 30 wheels stiff and gives a good, stable platform for the suspension to work from.
4-piston Shimano SLX hydraulic disc brakes are perfect for keeping things in check, even on long alpine descents and the 12-speed SRAM GX Eagle drivetrain has ample gear ratios for the longest climbs thanks to the huge 10-50 cassette.
Highlights
- Trek OCLV Mountain Carbon frame with internal storage, tapered head tube, Knock Block, Control Freak internal routing, Carbon Armour, ISCG 05, magnesium rocker link, Mino Link and Boost
- FOX Performance FLOAT EVOL rear shock with RE:aktiv Thru Shaft 3-position damper, tuned by Trek Suspension Lab
- FOX Performance 36, FLOAT EVOL air spring fork with GRIP damper, tapered steerer, 44mm offset 140mm travel
- SRAM GX Eagle 12-speed groupset
- Shimano SLX 4-piston hydraulic disc brakes
- Bontrager Line Carbon 30, Tubeless Ready wheels
- Bontrager Line Elite Dropper seatpost
Technical Specification
| Frame | Trek OCLV Mountain Carbon main frame and stays, BITS internal storage, tapered head tube, Knock Block, Control Freak internal routing, Carbon Armor, ISCG 05, magnesium rocker link, Mino Link, ABP, Boost148, 130mm travel |
| Fork | FOX Performance 36, FLOAT EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 140mm travel |
| Rear Suspension | FOX Performance FLOAT EVOL, RE |
| Bottom bracket | SRAM DUB, 92mm, PressFit |
| Stem | Bontrager Line Pro, 35mm, Knock Block, 0 degree |
| Handlebar | Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise |
| Grips | Bontrager XR Trail Elite, alloy lock-on |
| Brakes | Shimano SLX M7120 4-piston hydraulic disc |
| Brake Levers | Shimano SLX M7120 |
| Rear Derailleur | SRAM GX Eagle, 12-speed |
| Shift Levers | SRAM GX Eagle, 12-speed |
| Cassette | SRAM XG-1275 Eagle, 10-50, 12-speed |
| Chain | SRAM GX Eagle, 12-speed |
| Crankset | Truvativ Descendant 7k Eagle, DUB, 32 T alloy ring, Boost |
| Front Wheel | Bontrager Line Carbon 30, Tubeless Ready, 6 bolt, Boost110 |
| Rear Wheel | Bontrager Line Carbon 30, Tubeless Ready, 6 bolt, Boost148 |
| Tyres | Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 27.5x2.60" clincher |
| Saddle | Bontrager Arvada, austenite rails |
| Seatpost | Bontrager Line Elite Dropper, 170mm travel, internal routing, 31.6mm |
| Weight Limit | 136kg (bike, rider and cargo) |
| Manufacturer Claimed Weight | M - 13.17 kg / 29.03 lbs (with TLR sealant, no tubes) |
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 specified), 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. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.
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.
Trek Fuel EX 9.8 GX Eagle 27.5" Mountain Bike 2020 Sizing
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