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Carbon full-suspension mountain bike Trek Fuel LX 9.8 Eagle 90 miami green/aloha marble 12-speed

Carbon full-suspension mountain bike Trek Fuel LX 9.8 Eagle 90 Miami green: OCLV Mountain, 160/170 mm

£5,592.47 Incl. Tax

Color

Green

Size

Size charts

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Trek Fuel LX 9.8 Eagle 90 Miami Green: your first carbon enduro bike

The Trek Fuel LX 9.8 Eagle 90 Gen 7 is the most straightforward carbon Fuel LX: OCLV Mountain frame, 170 mm RockShox ZEB Ultimate fork, 160 mm Vivid Ultimate shock and mechanical SRAM Eagle 90 drivetrain. Trek does not publish its weight; for reference, the Fuel LX 9.8 XT Di2, on the same carbon frame, weighs 15.97 kg in a size M. Its Miami Green / Aloha Marble paintwork pairs a bright Miami green with a marbling with turquoise tints.

Technical specifications

Frame	OCLV Mountain carbon, in-frame storage, adjustable progression, interchangeable alloy rocker link and lower shock mount, ABP pivot, UDH hanger, threaded BSA 73 bottom bracket, ISCG 05
Suspension	RockShox ZEB Ultimate fork, Linear XL spring with ButterCups, Charger 3.2 RC2 damper, 170 mm / RockShox Vivid Ultimate shock 205 x 65 mm, 160 mm
Drivetrain	Mechanical SRAM Eagle 90 T-Type 1x12, steel 30T 170 mm chainset, XS-1275 10-52 cassette
Brakes	SRAM Maven Bronze hydraulic 4-piston, HS2 200 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	Weight not published by Trek for this version (for reference: Fuel LX 9.8 XT Di2, identical carbon frame, 15.97 kg in a size M)

At a glance

✓ OCLV Mountain carbon frame	✓ ZEB Ultimate and Vivid Ultimate
✓ 160 mm rear / 170 mm front	✓ Mechanical SRAM Eagle 90
✓ Five sizes, from S to XXL	✓ Reference: 15.97 kg (LX 9.8 XT Di2, M)

Who is it for?

It is aimed at the rider already on an alloy enduro bike who wants to move to carbon for lightness and liveliness, without going as far as an electronic drivetrain. It is an excellent choice for a first high-end bike.

The LVR workshop view

OCLV Mountain carbon, Trek's mountain bike signature. OCLV is Trek's carbon process; its Mountain version is tuned for impact resistance rather than weight saving alone. The Fuel LX 9.8 benefits with a frame lighter than the Alpha NEXT Platinum alloy of the LX 9, the same adjustable kinematics, a UDH hanger and Trek's lifetime warranty on the frame.

	OCLV Mountain (Fuel LX 9.8)	Alpha NEXT Platinum (Fuel LX 9)	OCLV Mountain (Slash 9.8)
Level	Trek's mountain bike carbon, lifetime warranty	Trek's best mountain bike aluminium	Same carbon, more aggressive bike
Construction	OCLV layup tuned to absorb impacts	Alloy engineered for strength	OCLV layup, 170 mm at the rear
Reference bike	Gen 7 carbon Fuel EX frameset: 3.31 kg (M)	Gen 7 alloy Fuel EX frameset: 4.95 kg (M)	Slash 9.8 XT Di2: 16.63 kg (M)
What it means	About 1.6 kg less on the frameset	Heavier, more affordable	More travel, less versatile

Put simply: the 9.8 Eagle 90 is the most direct way to get a carbon Fuel LX. The drivetrain stays mechanical and robust; the weight is not published, but the 9.8 XT Di2 on the same frame weighs 15.97 kg in M.

Moving from alloy to carbon mainly changes the feel when accelerating and climbing: less mass to carry, livelier steering. OCLV Mountain carbon is still tuned for impacts, and Trek warrants the frame for life. The mechanical Eagle 90 drivetrain, simple and robust, keeps the budget on what matters: the frame and the suspension.

The RockShox Ultimate suspension is the same as on the alloy models in the series: ZEB with ButterCups to filter out vibrations, Vivid at the rear. It is set according to your weight, then with the rebound and compression dials; we do this with you at handover, then at the first service.

Which Fuel should you choose?

Model	Frame	Drivetrain	Travel rear / front	Weight (M)
Fuel LX 9 Eagle 90	Alpha NEXT Platinum alloy	Mechanical SRAM Eagle 90	160 / 170 mm	17.38 kg
Fuel LX 9.8 Eagle 90	OCLV Mountain carbon	Mechanical SRAM Eagle 90	160 / 170 mm	n/a (reference 15.97 kg)
Fuel LX 9.8 XT Di2	OCLV Mountain carbon	Wireless Shimano XT Di2	160 / 170 mm	15.97 kg
Slash 9.8 XT Di2	OCLV Mountain carbon	Wireless Shimano XT Di2	170 / 170 mm	16.63 kg

Our take: compared with the alloy LX 9 Eagle 90 (17.38 kg in M), this 9.8 Eagle 90 brings carbon with the same drivetrain. The LX 9.8 XT Di2 (15.97 kg) adds Di2 and Fox suspension; the Slash 9.8 XT Di2 moves to 170 mm.

LVR sizing advice

Like the other carbon Fuel LX models, it is offered up to XXL and covers riders from 155 to 203 cm. Tall riders finally get a carbon enduro bike in their 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

Is carbon fragile for enduro?	OCLV Mountain carbon is tuned for impacts, and the frame has a lifetime warranty.
Bike weight?	Not published by Trek; for reference: 15.97 kg in M for the 9.8 XT Di2.
Can I switch to AXS later?	The UDH hanger allows it; we look at the upgrade with you in our workshop.
Does the marbling vary?	Yes, the marbled pattern can differ slightly from one frame to another.

The LVR Cycles verdict

The gateway to the carbon Fuel LX, with top-end suspension and a simple drivetrain. Its marbled Miami green gives it a bright, summery look.

Pros
+ OCLV Mountain carbon frame
+ RockShox Ultimate suspension
+ Vibrant marbled Miami green

Cons
- Entry-level Eagle drivetrain
- Weight not published

Why buy from LVR Cycles? As a Trek dealer in Béziers, we set up your carbon Fuel LX, fit the tyres tubeless and service the RockShox suspension.

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-5349044

Data sheet