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Carbon full-suspension mountain bike Trek Fuel EX 9.8 XT Di2 miami green/aloha marble 12-speed

Carbon full-suspension mountain bike Trek Fuel EX 9.8 XT Di2 Miami green: wireless XT Di2, 145/150 mm

zł30,792.58 Incl. Tax

Color

Green

Size

Size charts

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Trek Fuel EX 9.8 XT Di2 Miami Green: electronic precision on the trail

The Trek Fuel EX 9.8 XT Di2 Gen 7 replaces the cable-operated derailleur with the wireless Shimano XT Di2 M8250, on the OCLV Mountain carbon frame with Fox Factory suspension (145 mm rear, 150 mm front). Trek does not publish its weight; the 9.8 XT, identical apart from the drivetrain, weighs 15.28 kg in size M. Miami Green/Aloha Marble offers a deep teal set off by light green marbling.

Technical specifications

Frame	OCLV Mountain carbon, integrated storage, adjustable progression, threaded BSA 73, ISCG 05, UDH hanger, Boost
Suspension	Fox Factory 36 GRIP X2 150 mm / Fox Factory Float X 145 mm
Drivetrain	Wireless Shimano XT Di2 1x12, long-cage M8250 derailleur, XT M8200 30T chainset, XT M8200 10-51 cassette
Brakes	Shimano XT M8220 4-piston hydraulic, RT86 203 mm (front) and 180 mm (rear) rotors
Wheels / tyres	Bontrager Line Comp 30 aluminium / Maxxis Minion DHF (front) and DHR II (rear) 2.5, EXO+, 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, 150 to 200 mm depending on size
Weight	Weight not published by Trek for this version; reference: Fuel EX 9.8 XT, identical carbon frame, 15.28 kg in size M

At a glance

✓ OCLV Mountain frame with hatch	✓ Wireless Shimano XT Di2 M8250
✓ Fox Factory, 145 / 150 mm	✓ 10-51 cassette, 12 speeds
✓ 4-piston XT M8220 brakes	✓ Weight not published (reference 15.28 kg)

Who is it for?

For the mountain biker who loves technology and wants shifting that is always identical, with no cable adjustment from one ride to the next. It will suit the regular rider who rides in dust or mud and is tired of clogged housing.

The LVR workshop view

OCLV carbon, Trek's signature. OCLV refers to the moulding method Trek has applied to its fibres for more than thirty years: compaction under pressure and at high temperature that eliminates internal voids. Its Mountain version is designed for off-road riding, with a layup that prioritises strength against impacts. Combined with the Gen 7 Fuel EX, this carbon brings the frame kit down to 3.31 kg in M, 1.64 kg less than the aluminium version, with Trek's lifetime warranty.

	OCLV Mountain (Fuel EX 9.8 / 9.9)	Alpha NEXT Platinum (Fuel EX 5 to 9)	Road OCLV (Madone, Domane)
Level	The carbon Trek reserves for mountain biking	The pinnacle of Alpha aluminium	Road range, from OCLV 500 to 900
Construction	OCLV, impact resistance first	Tubes formed under fluid pressure	OCLV, weight-to-stiffness ratio first
Fuel EX frameset (M)	3.31 kg	4.95 kg	not relevant for MTB
What it means	Lighter bike, lifetime warranty	Heavier but durable frame	Material designed for tarmac

In short: the 9.8 XT Di2 shares its frame, suspension, brakes and wheels with the 9.8 XT; only the derailleur changes, to wireless and electronic. Trek does not publish a weight for this version, so the 9.8 XT at 15.28 kg in M remains the most accurate reference.

With no derailleur cable, nothing wears out or gets clogged between the shifter and the back of the bike: shifting stays as crisp after a season as on the first day. The derailleur is set up via the Shimano app, which we configure with you at handover, including the shift speed.

The derailleur battery needs recharging at regular intervals, like a GPS computer. We recommend checking it before every big ride on the Caroux or in the Espinouse; it quickly becomes a habit, and the gain in precision is well worth the small constraint.

Which Fuel should you choose?

Model	Frame	Travel rear / front	Drivetrain	Weight (M)
Fuel EX 9 XT Di2	Alpha NEXT Platinum alloy	145 / 150 mm	Wireless Shimano XT Di2	16.88 kg
Fuel EX 9.8 XT	OCLV Mountain carbon	145 / 150 mm	Mechanical Shimano XT	15.28 kg
Fuel EX 9.8 XT Di2	OCLV Mountain carbon	145 / 150 mm	Wireless Shimano XT Di2	not published
Fuel EX 9.9 X0 AXS	OCLV Mountain carbon	145 / 150 mm	Wireless SRAM X0 Eagle AXS	14.08 kg

Our take: the 9.8 XT Di2 shares everything with the 9.8 XT except the derailleur: you choose between the simplicity of a cable and the consistency of wireless. The 9.9 X0 AXS also offers wireless shifting, on the SRAM side, with carbon wheels and 14.08 kg in M.

LVR sizing advice

If you are between two sizes, the smaller one suits you if you like to place the bike and jump, the larger one if you mainly ride fast and long. Dropper post travel follows size, and the S gets a 27.5-inch rear wheel.

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
Wheels front / rear (in)	29 / 27.5	29 / 29	29 / 29	29 / 29	29 / 29

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

Your questions

Does it need charging often?	Regularly, depending on your use; a check before every big ride is enough.
What happens when the battery is flat?	The derailleur stays in the gear it is in; hence the value of checking the charge before you set off.
Can the shifting be adjusted?	Yes, via the Shimano app; we set it up with you.
Does the teal show the dirt?	Less than a light colour; the green marbling hides dust well.

The LVR Cycles verdict

The carbon Fuel EX for those who want consistently perfect shifting with no cable maintenance. The teal marbled with light green underlines its modern character.

Pros
+ Wireless, consistent Shimano XT Di2
+ App-based set-up
+ Very luminous lagoon colourway

Cons
- Battery to recharge
- Weight not published for this version

Why buy from LVR Cycles? In Béziers, we configure your Shimano Di2, update the firmware and set up the Fox suspension of your Fuel EX before handover.

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-5348972

Data sheet