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 9.9 XTR Mountain Bike 2021
Crafted from weight-saving OCLV carbon and geared up with top-tier front and rear suspension, the Trek Top Fuel 9.9 XTR Mountain Bike is a nimble performer on the trails - rapid, light, versatile and ideal for long days in the saddle. A slacker head tube angle means more margin for error should fatigue begin to set in on demanding endurance rides, and the Mino Link means geometry can be altered to best suit the kind of riding - flipping from aggressive to more trail-oriented, with a slightly dropped bottom bracket and half-degree slackened head tube angle. Get weight back and low during descents with the Bontrager Line Elite dropper seatpost, boosting comfort and control.
Fast-rolling Bontrager Kovee Pro 30 carbon wheels aid this bike's weight-saving credentials and come tubeless-ready, so pinch flats are banished and more traction can be achieved at lower pressures. Shifting duties are covered by advanced Shimano XTR 12-speed components, offering an increased gear range and smooth, responsive clicks through the cassette.
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 added weight and a Knock Block headset that protects against spinning bars and fork crowns
|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||FOX Factory 34 Step-Cast, Float EVOL air spring, FIT4 2-position damper, dual remote lockout, tapered steerer, 44mm offset, Kashima Coat, Boost110, 15mm Kabolt axle, 120mm travel|
|Rear Shock||FOX Factory Float, 2-position DPS damper, Bontrager DropLock remote, Kashima Coat, 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|
|Grips||Bontrager XR Trail Elite, alloy lock-on|
|Front Brake||Shimano XTR M9100 hydraulic disc|
|Rear Brake||Shimano XTR M9100 hydraulic disc|
|Brake Levers||Shimano XTR M9100|
|Rear Derailleur||Shimano XTR M9100, Shadow Plus, long cage, 51T max cog|
|Shift Levers||Shimano XTR M9100, 12-speed|
|Chain||Shimano XTR M9100, 12-speed|
|Cassette||Shimano XTR M9100, 10-51, 12-speed|
|Crankset||Shimano XTR M9120, 32T alloy ring, Boost|
|Front Wheel||Bontrager Kovee Pro 30 carbon, Tubeless Ready, 6-bolt, Boost110 front|
|Rear Wheel||Bontrager Kovee Pro 30 carbon, Tubeless Ready, 6-bolt, Boost148 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 Pro, 7x10mm carbon rails, 138mm width|
|Seatpost||Bontrager Line Elite Dropper, internal routing, 31.6mm|
|Pedals||Available to be purchased separately|
|Claimed Manufacturers Weight||Size M - 10.99kg / 24.23lbs (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 Top Fuel 9.9 XTR Mountain Bike 2021 Sizing
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