2024 Trek Fuel EX 9.9 XX AXS (P1 Now)

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  • Regular price $18,999.99

The Fuel EX 9.9 XX AXS is a performance-first trail bike built for riders who have an appreciation for the finest things in life. It combines a cream-of-the-crop carbon frame with top-tier components, from the carbon fibre wheels all the way up to the 150 mm Kashima-coated FOX Factory fork and featherweight, fully wireless SRAM XX transmission. It's a bike that rules the mountain and doesn't hesitate to lay claim to its domain, ripping up rock gardens, blasting berms and rocketing back to the top to conquer it all once again.

It's right for you if...

You have refined taste in mountain bikes, and don't like to settle. You want a bike built to tackle the whole mountain and rule it all with the finest technology available, from its light and stiff carbon frame and wheels that track through the hairiest lines, to the FOX Factory fork and SRAM's fully wireless top-tier XX transmission.

The tech you get

A featherweight OCLV Mountain Carbon frame built to handle the rough and rowdy, a pair of finely laced carbon wheels that track through technical terrain with ease and SRAM's top-tier XX AXS direct-mount, fully wireless electronic transmission. Plus, you get the silky smooth travel of a 150 mm FOX Factory 36 Fork with Float EVOL air spring and GRIP2 damper, 140 mm of FOX Factory Float X rear suspension and a RockShox Reverb AXS dropper post, all topped off with adjustable geometry for fine-tuning your ride to you and internal frame storage that lets you keep your set-up tidy without leaving behind trail essentials.

The final word

The Fuel EX 9.9 is a bike built to satisfy those with the finest taste. It pairs together an all- mountain trail capable carbon frame with the finest components you'll find on a modern mountain bike, from its carbon hoops to featherweight wireless SRAM XX AXS shifting. It's all wrapped up with adjustable geometry, so you can fine tune your ride to always feel how you want it.

Why you'll love it

  1. The Fuel EX Gen 6 gives you 140/150 mm of travel with extra adjustability features and more stable handling, plus a more robust frame with internal storage
  2. We expanded our size range to ensure a better fit for all riders, and use the best-fitting wheels for each frame size: XS frames get 27.5″ wheels, S frames get to choose between 27.5″ or 29″, and sizes M and up get 29″ wheels
  3. The new SRAM T-Type transmission delivers next-level performance with precise shifts under load and unmatched durability with proven wireless technology.
  4. In-frame storage makes it easy to bring along all your essentials, while keeping your set-up streamlined and sleek
  5. With the adjustable angle headset (angled cups sold separately) and Mino Link, you can choose from six different geometry configurations

Colour Options:

- Dark Aquatic

- Deep Smoke

- Lava

*Please note – spec applies to all sizes unless listed separately


Frame OCLV Mountain Carbon, internal storage, angle-adjust headset, Mino Link adjustable geometry, adjustable leverage rate, guided internal routing, magnesium rocker link, 34.9 mm seat tube, ISCG 05, 55 mm chain line, BSA 73, downtube guard, shuttle guard, ABP, UDH, Boost148, 140 mm travel
Fork Fox Factory 36, Float EVOL air spring, GRIP2 damper, tapered steerer, 44 mm offset, Kashima Coat, Boost110, 15 mm Kabolt axle, 150 mm travel
Shock Fox Factory Float X, 2-position damper, 185 mm x 55 mm
Max compatible fork travel 160mm

Wheel front Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless-Ready, 6-bolt, Boost110, 15 mm thru-axle
Wheel rear Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, SRAM XD driver, Boost148, 12 mm thru-axle
Skewer rear Bontrager Switch thru-axle, removable lever
Tyre Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 60 tpi, 29x2.50"
Tyre part Bontrager TLR sealant, 180 ml/6 oz
Rim strip Bontrager TLR
Max tyre size Frame: 29x2.50" (XS & S: 27.5x2.50"), Fork: See manufacturer

Shifter SRAM AXS POD Ultimate, paired with dropper
Rear derailleur SRAM XX Eagle AXS, T-Type
Crank SRAM XX Eagle, DUB, 30T, T-Type, 55 mm chainline, 170 mm length
Bottom bracket SRAM DUB MTB Wide, 73 m, BSA threaded
Cassette SRAM Eagle XS-1297, T-Type, 10-52, 12-speed
Chain SRAM XX Eagle, T-Type, 12-speed
Max. chainring size 1x: 34T round, 32T oval, min 28T

Saddle Bontrager Arvada, austenite rails, 138 mm width
*Seatpost Size: S
RockShox Reverb AXS, 100 mm travel, wireless, 34.9 mm, 340 mm length
Size: M , ML
RockShox Reverb AXS, 150 mm travel, wireless, 34.9 mm, 440 mm length
Size: L , XL
RockShox Reverb AXS, 170 mm travel, wireless, 34.9 mm, 480 mm length
*Handlebar/stem (integrated) Size: S
Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 27.5 mm handlebar rise, 820 mm width, 0-degree stem rise, 35 mm stem length
Size: M , ML , L , XL
Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 27.5 mm handlebar rise, 820 mm width, 0-degree stem rise, 45mm stem length
Grips Bontrager XR Trail Elite, nylon lock-on
Head set Integrated cartridge bearing, 1-1/8" top, 1.5" bottom, angle adjust cup compatible
Brake SRAM Code Ultimate 4-piston hydraulic disc
*Brake rotor Size: S , M , ML , L , XL
SRAM HS2, 6-bolt, 180mm
Size: M , ML , L , XL
SRAM 6-bolt, 200 mm
Rotor size Max brake rotor sizes - Frame: 203mm, Fork: see fork manufacturer


Weight M - 14.30 kg / 31.53 lbs (with TLR sealant, no tubes)
Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.