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Carbon full-suspension mountain bike Trek Fuel LX 9.8 XT miami green/aloha marble 12-speed

Carbon full-suspension mountain bike Trek Fuel LX 9.8 XT Miami green: enduro 160/170 mm, DHX2 coil, XT 1x12

kr70,664.15 Incl. Tax

Color

Green

Size

Size charts

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Trek Fuel LX 9.8 XT Miami Green: the carbon enduro bike for your first races

The Trek Fuel LX 9.8 XT Gen 7 is the enduro version of the Fuel in OCLV Mountain carbon: 160 mm of rear travel with a Fox DHX2 coil shock, a 170 mm Fox Factory 38 fork and a mechanical Shimano XT 1x12 drivetrain. Trek has not published a weight for this version; the closest reference is the Fuel LX 9.8 XT Di2, same carbon frame, at 15.97 kg in a size M. Its Miami Green/Aloha Marble finish pairs a Miami green leaning towards teal with a light green marbling.

Technical specifications

Frame	OCLV Mountain carbon, integrated storage, adjustable progression, interchangeable alloy rockers and lower shock mount, ZS headset, BSA 73 threaded bottom bracket, ISCG 05, ABP, UDH hanger, Boost
Suspension	Fox Factory 38 Float EVOL fork, GRIP X2 cartridge, 170 mm, 44 mm offset / Fox DHX2 coil shock 205 x 65 mm, 160 mm
Drivetrain	Mechanical Shimano XT M8200 1x12: 30T chainring, 10-51 cassette, M8200 long-cage derailleur, 170 mm cranks (165 mm depending on size)
Brakes	Shimano XT M8220 4-piston hydraulic, RT86 203 mm and 180 mm rotors
Wheels / tyres	Bontrager Line Comp 30 / Maxxis Assegai MaxxGrip and Minion DHR II MaxxTerra 29x2.5, EXO+ casing, Tubeless Ready
Cockpit	Race Face Turbine alloy handlebar 35 mm, 40 mm rise / Bontrager Elite stem 45 mm, 0°
Saddle / seatpost	Verse Short Comp steel rails, 145 mm / Bontrager Line Dropper 150 to 200 mm depending on size
Weight	Weight not published by Trek for this version (for reference: Fuel LX 9.8 XT Di2, same carbon frame, 15.97 kg in a size M)

At a glance

✓ OCLV Mountain carbon frame	✓ Enduro 160 mm rear / 170 mm front
✓ Fox DHX2 coil shock	✓ Mechanical Shimano XT 1x12, 10-51
✓ Maxxis 29x2.5 EXO+ tyres	✓ Weight not published (reference 15.97 kg in M)

Who is it for?

For the mountain biker getting into regional enduro races who wants a bike ready for timed stages straight out of the workshop, with no electronics to manage. It also suits the committed trail rider who finds their current bike outclassed on steep, rough descents.

The LVR workshop view

OCLV carbon, Trek's signature. On an enduro mountain bike, carbon is not just about saving weight: the OCLV Mountain version is laid up to withstand rock strikes and botched landings, with Trek's lifetime warranty on the frame. On the Gen 7 Fuel platform, Trek claims a frameset of 3.31 kg in carbon versus 4.95 kg in aluminium (measured on the Fuel EX in a size M).

	OCLV Mountain (Fuel LX 9.8 / 9.9)	Alpha NEXT Platinum (Fuel LX 9)	Alpha Silver (Marlin)
Level	Trek's mountain bike carbon, top end	Trek's best mountain bike aluminium	Entry-level aluminium
Construction	OCLV process, impact reinforcements	Hydroformed tubes, smoothed welds	Simpler tubes, more material
Gen 7 Fuel frameset	3.31 kg (Fuel EX, M)	4.95 kg (Fuel EX, M)	not applicable
What it means	Lively acceleration, lifetime warranty	Robust, gentler on the budget	Reserved for hardtails

Put simply: with an identical drivetrain, the Fuel LX 9.8 XT takes the components of the alloy Fuel LX 9 XT and swaps the frame for carbon. Trek does not publish its weight, but the frameset difference measured on the platform (over 1.6 kg) gives an idea of the gain to expect on the climbs.

In racing, reliability comes first: the cable-actuated XT drivetrain can be adjusted trailside with a simple key, with no battery to monitor between stages. The 30-tooth chainring and 10-51 cassette give a gear of less than one wheel turn per pedal stroke, ideal for climbing the transfers to the starts around Lodève without draining your reserves.

The DHX2 coil shock stays glued to the ground through sequences of small ledges and roots, where an air spring gets harsher towards the end of a stage as it heats up. The Assegai tyre in MaxxGrip compound and the Minion DHR II in MaxxTerra, in EXO+ casing, make a popular pairing among enduro riders.

Which Fuel should you choose?

Model	Frame	Travel rear / front	Drivetrain	Weight (M)
Fuel LX 9 XT	Alpha NEXT Platinum alloy	160 / 170 mm	Mechanical Shimano XT 1x12	17.79 kg
Fuel LX 9.8 XT	OCLV Mountain carbon	160 / 170 mm	Mechanical Shimano XT 1x12	not published
Fuel LX 9.8 XT Di2	OCLV Mountain carbon	160 / 170 mm	Shimano XT Di2 1x12	15.97 kg
Slash 9.8 XT Di2	OCLV Mountain carbon	170 / 170 mm	Shimano XT Di2 1x12	16.63 kg

Our take: compared with the alloy Fuel LX 9 XT (17.79 kg), the 9.8 XT keeps the same drivetrain and moves to carbon. The 9.8 XT Di2 remains the published weight reference at 15.97 kg; the Slash 9.8 XT Di2 goes up to 170 mm at the rear for 16.63 kg.

LVR sizing advice

The Fuel LX is chosen first according to the rider's height: between two sizes, the smaller one makes the bike more playful in hairpins, the larger one more stable at high speed. Dropper post travel increases with size.

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	170	200	200	200

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

Your questions

Tough enough for racing?	Yes, OCLV Mountain carbon is designed for enduro and the frame benefits from Trek's lifetime warranty.
Why no weight?	Trek has not published it; the 9.8 XT Di2 with the same frame weighs 15.97 kg in M.
Can I fit a chain guide?	Yes, the frame has ISCG 05 mounts for exactly that.
Is the Miami green fragile?	Frame protection fitted in our workshop keeps the paint safe from flying debris.

The LVR Cycles verdict

A carbon Fuel LX that is easy to live with, ready to take the start of an enduro with a mechanical drivetrain that fears nothing. Its Miami green marbled with light green stands out in the start queue.

Pros
+ DHX2 coil glued to the ground
+ XT drivetrain easy to adjust
+ Original Miami green colour

Cons
- Weight not published by Trek
- Stock alloy handlebar
- Spring to choose for your weight

Why buy from LVR Cycles? As a Trek dealer in Béziers, we set the DHX2 sag and rebound for your weight, fit the tyres tubeless and prepare your Fuel LX before every race.

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-5349054

Data sheet