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Carbon full-suspension mountain bike Trek Fuel MX 9.9 X0 AXS gloss dark carmine/matte trek black 12-speed

Carbon full-suspension mountain bike Trek Fuel MX 9.9 X0 AXS carmine and black: wireless T-Type, 150/170 mm

CHF7,775.57 Incl. Tax

Color

Black and red

Size

Size charts

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Trek Fuel MX 9.9 X0 AXS Dark Carmine: a drivetrain that takes everything in its stride

The Trek Fuel MX 9.9 X0 AXS Gen 7 brings together an OCLV Mountain carbon frame, 150 mm of rear travel and 170 mm up front, Bontrager Line Pro 30 carbon wheels and a wireless SRAM X0 Eagle AXS T-Type drivetrain. Weight not published by Trek for this version; Trek gives 14.08 kg in a size M for the Fuel EX 9.9 X0 AXS, to be taken simply as a reference. The Gloss Dark Carmine/Matte Trek Black paintwork pairs a glossy dark carmine red with a matte black.

Technical specifications

Frame	OCLV Mountain carbon, integrated storage, adjustable progression, interchangeable rocker link and lower shock mount, down tube and transport protection, threaded BSA 73 bottom bracket, ISCG 05, ABP, UDH hanger, Boost
Suspension	RockShox ZEB Ultimate fork, Charger 3.2 RC2 damper, 170 mm / RockShox Vivid Ultimate shock 205 x 65 mm, 150 mm at the rear
Drivetrain	Wireless SRAM X0 Eagle AXS T-Type 1x12, 30T chainring, XS-1295 10-52 cassette, AXS battery with charger
Brakes	SRAM Maven Silver hydraulic 4-piston, HS2 200 and 180 mm rotors
Wheels / tyres	Bontrager Line Pro 30 carbon / mixed set-up: Maxxis Assegai 29x2.5 MaxxGrip up front, Minion DHR II 27.5x2.5 MaxxTerra at the rear, EXO+, Tubeless Ready
Cockpit	Race Face ERA carbon handlebar 800 mm (27.5 mm rise), Race Face Turbine R stem 40 mm
Saddle / seatpost	Trek Aeolus Pro carbon rails 145 mm / Fox Transfer Neo dropper post, 150 to 200 mm depending on size
Weight	Weight not published by Trek for this version; for reference: Fuel EX 9.9 X0 AXS 14.08 kg in a size M

At a glance

✓ OCLV Mountain carbon	✓ RockShox ZEB / Vivid, 170 / 150 mm
✓ Wireless SRAM X0 Eagle AXS	✓ Line Pro 30 carbon wheels
✓ Race Face ERA carbon handlebar	✓ Weight n/a; reference EX 9.9 X0 AXS 14.08 kg (M)

Who is it for?

For the mountain biker who rides hard on rocky terrain and has already broken a derailleur hanger or two. They want a robust drivetrain, precise under load, and a high-end bike capable of lasting several seasons.

The LVR workshop view

OCLV Mountain carbon, Trek's signature. At the top of the Fuel MX range, the 9.9 X0 AXS keeps the OCLV Mountain carbon frame of the 9.8: a mountain bike carbon compacted under heat and pressure, with fibres laid out to withstand repeated impacts rather than break lightness records. What sets it apart is the kit fitted around it: carbon wheels, carbon handlebar and wireless electronics. Trek lifetime warranty on the frame.

	OCLV Mountain (Fuel MX 9.8 / 9.9)	Alpha NEXT Platinum (Fuel MX 9)	Carbon Fuel EX / LX
Level	Trek's mountain bike carbon, tuned for impacts	Trek's most advanced aluminium	Same Gen 7 Fuel platform
Construction	Plies compacted under heat and pressure	Alpha NEXT Platinum alloy	Identical OCLV Mountain carbon
Gen 7 Fuel frameset (M)	3.31 kg (Fuel EX figure)	4.95 kg (Fuel EX figure)	3.31 kg for the EX
What it means	Around 1.6 kg less on the frame, lifetime warranty	Heavier, gentler on the budget	145 / 150 mm (EX) or 160 / 170 mm (LX)

Put simply: on a 9.9, it is no longer the frame that makes the difference but the parts that complete it. The Line Pro 30 carbon wheels and the Race Face ERA cockpit reduce rotating mass and weight up front, which you feel above all when changing direction and accelerating.

The X0 Eagle AXS T-Type derailleur mounts directly on the UDH hanger, with no intermediate part: it copes far better with a rock strike and its adjustment does not drift. Shifts happen under full load, and the XS-1295 10-52 cassette offers a very easy sprocket for the steepest climbs.

The Trek Aeolus Pro saddle with carbon rails and AirLoom structure, and the 800 mm Race Face ERA carbon handlebar complete a high-end cockpit. The handlebar can be cut down if you prefer it narrower: we adjust its width, the height of the 40 mm stem and the lever position to your build.

Which Fuel should you choose?

Model	Frame	Travel rear / front	Drivetrain	Weight (M)
Fuel EX 9.9 X0 AXS	OCLV Mountain carbon	145 / 150 mm	Wireless SRAM X0 AXS	14.08 kg
Fuel MX 9.8 XT Di2	OCLV Mountain carbon	150 / 160 mm	Wireless Shimano XT Di2	not disclosed
Fuel MX 9.9 X0 AXS	OCLV Mountain carbon	150 / 170 mm	Wireless SRAM X0 AXS	not published
Fuel LX 9.8 XT Di2	OCLV Mountain carbon	160 / 170 mm	Wireless Shimano XT Di2	15.97 kg

Our take: compared with the Fuel MX 9.8 XT Di2, this 9.9 X0 AXS brings the 170 mm fork, carbon wheels and handlebar. It shares its RockShox suspension with the MX 9.8 Eagle 90; the Fuel EX 9.9 X0 AXS (14.08 kg in M) remains the trail version, at 145/150 mm.

LVR sizing advice

Between two sizes, choose the smaller one for playful handling, the larger one for stability on long descents. The Fox Transfer Neo goes from 150 mm in S to 175 mm in M and 200 mm above.

Size	S	M	L	XL	XXL
Rider height (cm)	155-165	165-177	177-188	188-195	195-203
Inseam (cm)	74-78	79-83	84-89	89-91	91-97
Dropper post (mm)	150	175	200	200	200

Source: Trek size guide. Bike fitting available in our Béziers shop.

Your questions

Is the UDH hanger strong?	Yes, and it is universal: most shops stock it in case of breakage.
Does the derailleur need charging?	Yes, from time to time: SRAM AXS battery supplied with its charger.
Can the handlebar be cut down?	Yes, the 800 mm Race Face ERA can be cut; we do it to your width.
Is the glossy carmine fragile?	Like any gloss paint; a protective film fitted in our workshop preserves the frame.

The LVR Cycles verdict

The high-end Fuel MX for those who ride hard on rough terrain, with a very robust T-Type drivetrain. The glossy carmine red and matte black give it a look that is both understated and luxurious.

Pros
+ Very robust T-Type drivetrain
+ Carbon cockpit and wheels
+ Carmine red and matte black

Cons
- Weight not published by Trek
- 800 mm handlebar to be cut down for some riders

Why buy from LVR Cycles? As a Trek dealer in Béziers, we set up your X0 AXS drivetrain, adjust the cockpit to your build and provide complete servicing for your Fuel MX.

Please note that the specifications may be changed without prior notice by the manufacturer, based on the availability of components and other factors.

Reference TRK-5351886

Data sheet