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 Top Fuel 9.8 GX AXS Mountain Bike 2021
Built to deliver speed on fast, flowing singletrack, the Trek Top Fuel 9.8 GX AXS Mountain Bike is a fun all-rounder for cross country and trail use. The frame is efficient on hills but does not turn down a techy descent, with its lightweight carbon construction offering stiffness and premium lightweight performance. With 115mm of suspension travel on offer, this bike provides a spritely feel with rapid acceleration and sublime handling.
A Straight Shot downtube enhances rigidity on technical terrain, while a knock-block headset limits the angle of bar rotation to protect the frame from damage. The wide Kovee Elite 30 wheels improve tyre support to enhance traction, with the ultralight carbon construction reducing rotational mass for speedy acceleration.
This bike receives a high-tech specification that includes the fully wireless SRAM GX AXS drivetrain. With its cable-free design, it is trivial to set up and can be customised to your preference through the use of the accompanying SRAM mobile application. The RockShox SID Select+ fork is supple through its 120mm of suspension travel, offering excellent traction on chattery terrain. It is coupled with a RockShox SID Luxe Ultimate rear shock for unrivalled adjustment, and both can be locked out with the Bontrager DropLock system.
Highlights
- The full OCLV carbon frame gives you a light, responsive ride
- This short-travel trail bike gives you a suspension set-up that’s capable in several MTB disciplines, and especially suited to endurance events
- Bontrager DropLock's shifter-style lever lets you easily lock out both front and rear shocks at the same time for added sprinting or climbing efficiency
- Wider Kovee Pro 30 wheels provide better tyre support so you can run lower pressure and get more traction
- Mino Link lets you make small adjustments to your geometry quickly and easily, even mid-ride
- You get a Straight Shot Downtube for extra-stiff, responsive handling without the added weight and a Knock Block headset that protects against spinning bars and fork crowns
- Full wireless SRAM GX AXS drivetrain provides a state-of-the-art shifting experience
Technical Specification
| Frame | Trek OCLV Mountain Carbon main frame and stays, tapered head tube, Knock Block, Control Freak internal routing, Carbon Armor, magnesium rocker link, Mino Link, ABP, Boost148, 115mm travel |
| Fork | RockShox SID Select+, DebonAir spring, Charger 2 RL damper, Bontrager DropLock remote, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 120mm travel |
| Rear Shock | RockShox SIDLuxe Ultimate, DebonAir spring, Ultimate RL damper, Bontrager DropLock remote, 190x45mm |
| Headset | Trek Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8" top, 1.5" bottom |
| Stem | Bontrager Kovee Pro, 35mm, Knock Block, Blendr compatible, 13 degree |
| Handlebar | Bontrager Line Pro, OCLV Carbon, 35mm, 15mm rise, 750mm width |
| Grips | Bontrager XR Trail Elite, alloy lock-on |
| Front Brake | SRAM G2 RS hydraulic disc |
| Rear Brake | SRAM G2 RS hydraulic disc |
| Brake Levers | SRAM G2 RS |
| Rear Derailleur | SRAM GX AXS Eagle, 12-speed |
| Shift Levers | SRAM GX AXS Eagle, 12-speed |
| Chain | SRAM GX Eagle, 12-speed |
| Cassette | SRAM Eagle XG-1275, 10-52t, 12-speed |
| Crankset | SRAM GX 7K Eagle, DUB, 32T alloy ring, Boost |
| Front Wheel | Bontrager Kovee Elite 30 carbon, Tubeless Ready, 6-bolt, Boost110 front |
| Rear Wheel | Bontrager Kovee Elite 30 carbon, Tubeless Ready, 6-bolt, Boost 148 rear |
| Front Tyre | Bontrager XR3 Team Issue, Tubeless-Ready, Inner Strength sidewall, aramid bead, 120tpi, 29x2.40", clincher |
| Rear Tyre | Bontrager XR3 Team Issue, Tubeless-Ready, Inner Strength sidewall, aramid bead, 120tpi, 29x2.40", clincher |
| Saddle | Bontrager Montrose Elite, titanium rails, 138mm width |
| Seatpost | Bontrager Line Elite Dropper, internal routing, 31.6mm |
| Pedals | Available to be purchased separately |
| Claimed Manufacturers Weight | Size M - 11.88kg / 25.88lbs (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 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. 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. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.
If you require any assistance please contact our Customer Care team.