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

Aluminium full-suspension mountain bike Trek Fuel LX 9 XT grey: S to XL, Fox 38 and DHX2, 17.79 kg in M

€5,699.00 Incl. Tax

Color

Gris et Noir

Size

Size charts

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Description
Product Details

Trek Fuel LX 9 XT Lithium Grey: an enduro bike that starts at 155 cm

Rare in the enduro world, the Trek Fuel LX 9 XT Gen 7 is available here from size S, for riders from 155 cm, up to XL. It keeps the 170 mm Fox Factory 38 fork, the 160 mm DHX2 coil shock and the Shimano 1x12 10-51 drivetrain, for 17.79 kg in a size M. The Lithium Grey / Trek Black Splatter colourway features a lithium grey splashed with black.

Technical specifications

Frame	Alpha NEXT Platinum aluminium, in-frame storage, adjustable progression, interchangeable rocker and lower shock mount, ABP pivot, threaded BSA 73 bottom bracket, ISCG 05, down tube protection
Suspension	Fox Factory 38 Float EVOL fork, GRIP X2 damper, 170 mm / Fox DHX2 coil shock 205 x 65 mm, 160 mm
Drivetrain	Mechanical Shimano 1x12, M8200 long-cage derailleur, XT M8200 30T crankset (165 or 170 mm according to Trek data), XT M8200 10-51 cassette
Brakes	Shimano XT M8220 4-piston hydraulic, RT86 203 and 180 mm rotors
Wheels / tyres	Bontrager Line Comp 30 / Maxxis Assegai MAXXGRIP (front) and Minion DHR II MAXXTERRA (rear), 29 x 2.5, EXO+ casing, Tubeless Ready
Cockpit	Race Face Turbine alloy 35 mm handlebar, 40 mm rise; Bontrager Elite 45 mm stem
Saddle / seatpost	Verse Short Comp 145 mm / Bontrager Line Dropper post 150/170/200 mm depending on size, 34.9 mm
Weight	17.79 kg in size M (Trek figure, with tubeless sealant)

At a glance

✓ Fox Factory 38 and DHX2 coil	✓ 160 mm rear, 170 mm front
✓ Shimano 1x12 with 10-51	✓ 4-piston XT M8220 brakes
✓ From S to XL	✓ 17.79 kg in size M

Who is it for?

Also designed for smaller riders, women or experienced teenagers, who struggle to find a proper enduro bike in their size. The size S gets a 150 mm dropper post, suited to a shorter leg.

The LVR workshop view

The Fuel frame in its top-end alloy version. Alpha NEXT Platinum sits at the top of Trek's mountain bike alloy hierarchy, ahead of the Alpha Platinum of the Slash 8 and the Alpha Silver of the Marlin. For a bike exposed to repeated impacts, it is a logical choice. It gets most of the carbon frame's features: progression adjustment, interchangeable rocker link and lower shock mount, ABP pivot, down tube protection and transport protection for bike racks.

	Alpha NEXT Platinum (Fuel LX 9)	OCLV Mountain (Fuel LX 9.8)	Alpha Platinum (Slash 8)
Level	Trek's best MTB aluminium, reserved for Gen 7 Fuels	Trek's mountain bike carbon	Aluminium from the range above
Construction	Alloy engineered for strength, highly adjustable frame	OCLV layup tuned for impact resistance	Tough alloy, simpler kinematics
Reference bike	Gen 7 alloy Fuel EX frameset: 4.95 kg (M)	Gen 7 carbon Fuel EX frameset: 3.31 kg (M)	Complete Slash 8: 16.68 kg (M)
What it means	Takes knocks, more affordable	About 1.6 kg less on the frameset	170 mm alloy enduro, less adjustable

Put simply: aluminium remains the most rational material here for a rider who rides hard and often. It adds weight, around 1.6 kg on the frameset according to Trek, but it takes a season of rough trails without flinching.

On a small frame, every detail matters. Trek fits a 150 mm dropper post in S, compared with 170 mm in M and 200 mm in L and XL, so that the saddle drops right down without getting in the way of the leg. Trek data also mentions 165 mm cranks, better suited to smaller riders; we check the length fitted for each size.

For a light rider, suspension set-up is essential: a DHX2 spring that is too stiff makes the rear end dead. We choose the right spring rate for your weight and set the Fox 38 pressure accordingly. That is where the bike becomes truly effective.

Which Fuel should you choose?

Model	Frame	Drivetrain	Travel rear / front	Weight (M)
Fuel LX 9 XT	Alpha NEXT Platinum alloy	Mechanical Shimano XT	160 / 170 mm	17.79 kg
Fuel LX 9 XT Di2	Alpha NEXT Platinum alloy	Wireless Shimano XT Di2	160 / 170 mm	n/a
Slash 8	Alpha Platinum alloy	Mechanical Shimano XT	170 / 170 mm	16.68 kg
Fuel LX 9.8 XT Di2	OCLV Mountain carbon	Wireless Shimano XT Di2	160 / 170 mm	15.97 kg

Our take: the LX 9 XT comes in a wireless Di2 version, weight not published. The Slash 8 drops to 16.68 kg but comes with 170 mm at the rear; the carbon LX 9.8 XT Di2 weighs 15.97 kg in M.

LVR sizing advice

Four sizes from S to XL, for riders from 155 to 195 cm. On an enduro bike, if you are between two sizes, choose according to your trails: the smaller one turns better, the larger one is reassuring at speed.

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)	150	170	200	200

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

Your questions

Does it suit a smaller rider?	Yes, the size S covers riders from 155 to 165 cm.
Spring suitable for a light rider?	Yes, the spring can be changed; we choose the right rate.
What crank length?	Trek states 165 or 170 mm; we check according to size.
Is the grey versatile?	Yes, it stays understated and hides mud marks well.

The LVR Cycles verdict

A proper alloy enduro bike accessible to smaller riders, thanks to its size S and well-matched components. The lithium grey speckled with black gives it a technical look.

Pros
+ Size S from 155 cm
+ Dropper post matched to the size
+ Technical grey

Cons
- 17.79 kg to haul for a light rider
- Spring to match to your weight

Why buy from LVR Cycles? As a Trek dealer in Béziers, we adapt your Fuel LX to your build: spring, pressure, position and crank length.

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-5351692

Data sheet