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Aluminium full-suspension mountain bike Trek Fuel MX 9 XT M8200 lithium grey / trek black splatter 12-speed

Aluminium full-suspension mountain bike Trek Fuel MX 9 XT grey: S to XL, Fox Factory 150/160 mm, 16.91 kg

$6,131.78 Incl. Tax

Color

Gris et Noir

Size

Size charts

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Trek Fuel MX 9 XT grey: an all-mountain bike for every body type

Offered from S to XL, the Trek Fuel MX 9 XT Gen 7 adapts its dropper post and cranks to each size, with an Alpha NEXT Platinum aluminium frame, Fox Factory suspension with 150 mm at the rear and 160 mm up front, and a 12-speed Shimano XT M8200 drivetrain. Trek claims 16.91 kg in a size M. The Lithium Grey / Trek Black Splatter is a silver grey speckled with black.

Technical specifications

Frame	Alpha NEXT Platinum aluminium, integrated storage, adjustable progression, interchangeable rocker and lower shock mount, ABP, threaded BSA 73 bottom bracket, ISCG 05
Suspension	Fox Factory 36 GRIP X2 fork, 160 mm / Fox Factory Float X 205x60 mm shock, 150 mm at the rear
Drivetrain	Shimano XT 1x12, long-cage M8200 derailleur, M8200 30T chainset (165 or 170 mm depending on size), M8200 10-51 cassette
Brakes	Shimano XT M8220 4-piston hydraulic, RT86 rotors, 203 mm front and 180 mm rear
Wheels / tyres	Bontrager Line Comp 30 / Maxxis Assegai MaxxGrip 29x2.5 front, Minion DHR II MaxxTerra 27.5x2.5 rear, EXO+, Tubeless Ready
Cockpit	Race Face Turbine alloy 35 mm handlebar (40 mm rise), Bontrager Elite 45 mm stem, Trek Line Elite grips
Saddle / seatpost	Verse Short Comp 145 mm / Bontrager Line Dropper 34.9 mm dropper post (150 to 200 mm travel depending on size)
Weight	16.91 kg in size M (Trek figure, with tubeless sealant, no inner tubes)

At a glance

✓ Alpha NEXT Platinum frame	✓ Fox Factory 160 / 150 mm
✓ 12-speed Shimano XT, 10-51 cassette	✓ 4-piston XT brakes, 203 mm rotor
✓ 29 / 27.5 mullet on Maxxis	✓ 16.91 kg in size M

Who is it for?

For short or tall mountain bikers, from 155 to 195 cm, who want an all-mountain bike sized properly for them. It will suit a woman looking for a well-equipped S just as well as a tall rider who wants an XL with a 200 mm dropper.

The LVR workshop view

Why an aluminium Fuel MX? The frame is built from Alpha NEXT Platinum, the top tier of Trek's alloys, ahead of Alpha Platinum and Alpha Silver. On the Gen 7 Fuel platform, the aluminium frame kit (4.95 kg in M, measured on the Fuel EX) weighs 1.64 kg more than the carbon kit (3.31 kg): that is the price of toughness and a controlled budget.

	Alpha NEXT Platinum (Fuel 9)	OCLV Mountain (Fuel 9.8 / 9.9)	Alpha Platinum (Slash 8)
Level	Trek's best aluminium	Trek's mountain bike carbon	High-end alloy, one step below NEXT
Designed to	Take knocks at a sensible cost	Save weight, resist impacts	Aluminium enduro frames
Gen 7 Fuel EX frameset (M)	4.95 kg	3.31 kg	not applicable
What it means	Heavier, but unbothered by small knocks	1.64 kg less on the frameset	Previous aluminium generation

Put simply: whatever your height, you get the same tough alloy frame and the same suspension settings; only the dropper and cranks change.

Trek specifies 165 or 170 mm cranks depending on size: a shorter crank reduces pedal strikes on rocks and better suits shorter legs. The Line Dropper, from 150 mm in S to 200 mm in L and XL, adapts to every leg length.

The Shimano XT M8200 offers precise shifting and great longevity. The 10-51 cassette covers every gradient, and maintenance remains within reach of an attentive rider; we show you the basic adjustments at handover.

Which Fuel should you choose?

Model	Frame	Travel rear / front	Drivetrain	Weight (M)
Fuel EX 9 XT	Alpha NEXT Platinum alloy	145 / 150 mm	Shimano XT 1x12	17.14 kg
Fuel MX 9 XT	Alpha NEXT Platinum alloy	150 / 160 mm	Shimano XT 1x12	16.91 kg
Fuel MX 9 XT Di2	Alpha NEXT Platinum alloy	150 / 160 mm	Shimano XT Di2 1x12	not disclosed
Fuel LX 9 XT	Alpha NEXT Platinum alloy	160 / 170 mm	Shimano XT 1x12	17.79 kg

Our take: the MX 9 XT strikes a good balance in the alloy range: 230 g less than the Fuel EX 9 XT (17.14 kg) and 880 g less than the Fuel LX 9 XT (17.79 kg). For an electronic drivetrain, you need to move up to the MX 9 XT Di2.

LVR sizing advice

If you are between two sizes, the smaller favours handling in switchbacks and slow sections, the larger brings stability as speed rises. Dropper post travel follows frame size.

Size	S	M	L	XL
Rider height (cm)	155-165	165-177	177-188	188-195
Inseam (cm)	74-78	79-83	84-89	89-91
Dropper post (mm of travel)	150	170	200	200

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

Your questions

Which size for 1.60 m?	The S covers 155 to 165 cm; we fine-tune with an inseam measurement.
Do the cranks change?	Yes, 165 or 170 mm depending on size, according to Trek data.
Can the dropper be shortened?	Travel depends on size; we check insertion according to your leg length.
Does the grey suit everyone?	Yes, this silver grey speckled with black stays understated and timeless.

The LVR Cycles verdict

A Fuel MX accessible to every body type, from S to XL, with components matched to each size. Its silver grey finish speckled with black has a timeless simplicity.

Pros
+ Four sizes with matched components
+ Reliable Shimano XT M8200
+ Understated silver grey

Cons
- No electronics
- Weight to haul uphill

Why buy from LVR Cycles? In our Béziers shop, we check the size with you, set up the saddle and dropper post and prepare your Fuel MX in our workshop.

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-5351804

Data sheet