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Carbon full-suspension mountain bike Trek Fuel MX 9.8 Eagle 90 purple phaze/amethyst marble 12-speed

Carbon full-suspension mountain bike Trek Fuel MX 9.8 Eagle 90 mauve: ZEB and Vivid, 150/170 mm travel

$7,246.84 Incl. Tax

Color

Violet et Noir

Size

Size charts

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Trek Fuel MX 9.8 Eagle 90 Purple Phaze: pedal up, descend hard

With its OCLV Mountain carbon frame, 170 mm RockShox ZEB Ultimate fork and Vivid Ultimate shock for 150 mm at the rear, the Trek Fuel MX 9.8 Eagle 90 Gen 7 targets trails where you climb up yourself to enjoy the ride down. Weight not published by Trek for this version, with references of 15.28 kg for a Fuel EX 9.8 XT and 15.97 kg for a Fuel LX 9.8 XT Di2 in a size M. The Purple Phaze/Amethyst Marble colourway pairs a deep, almost black mauve with amethyst veins.

Technical specifications

Frame	OCLV Mountain carbon, integrated storage, adjustable progression, interchangeable rocker link and lower shock mount, down tube and transport protection, threaded BSA 73 bottom bracket, ISCG 05, ABP, UDH hanger, Boost
Suspension	RockShox ZEB Ultimate fork, Charger 3.2 RC2 damper, 170 mm / RockShox Vivid Ultimate shock 205 x 65 mm, 150 mm at the rear
Drivetrain	SRAM Eagle 90 T-Type 1x12, 30T steel chainring, XS-1275 10-52 cassette, GX Eagle chain
Brakes	SRAM Maven Bronze hydraulic 4-piston, HS2 200 and 180 mm rotors
Wheels / tyres	Bontrager Line Comp 30 / mixed set-up: Maxxis Assegai 29x2.5 MaxxGrip up front, Minion DHR II 27.5x2.5 MaxxTerra at the 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 post, 150 to 200 mm of travel depending on size
Weight	Weight not published by Trek for this version; references in a size M: Fuel EX 9.8 XT 15.28 kg, Fuel LX 9.8 XT Di2 15.97 kg

At a glance

✓ OCLV Mountain carbon	✓ 150 mm rear / 170 mm front
✓ Mixed 29 / 27.5-inch wheels	✓ SRAM Eagle 90 T-Type 1x12
✓ Maven Bronze 4-piston brakes	✓ Weight n/a; reference EX 9.8 XT 15.28 kg (M)

Who is it for?

For the rider who prefers to earn their descents with their legs rather than on a lift, and wants a bike that can tackle the steep red-earth slopes around the Salagou as well as the rocky trails of the Hérault hinterland.

The LVR workshop view

OCLV Mountain carbon, Trek's signature. OCLV Mountain is the off-road version of OCLV carbon: the same compaction of the plies under heat and pressure, but a layup designed to withstand rock strikes and landings rather than to chase the lowest weight. On this Fuel MX 9.8 Eagle 90, the frame gets down tube protection, a storage hatch and the UDH hanger, and it benefits from Trek's lifetime warranty.

	OCLV Mountain (Fuel MX 9.8 / 9.9)	Alpha NEXT Platinum (Fuel MX 9)	Carbon Fuel EX / LX
Level	Trek's mountain bike carbon, tuned for impacts	Trek's most advanced aluminium	Same Gen 7 Fuel platform
Construction	Plies compacted under heat and pressure	Alpha NEXT Platinum alloy	Identical OCLV Mountain carbon
Gen 7 Fuel frameset (M)	3.31 kg (Fuel EX figure)	4.95 kg (Fuel EX figure)	3.31 kg for the EX
What it means	Around 1.6 kg less on the frame, lifetime warranty	Heavier, gentler on the budget	145 / 150 mm (EX) or 160 / 170 mm (LX)

Put simply: this 9.8 Eagle 90 is the most simply equipped of the carbon Fuel MX models. Its frame is that of the higher versions; the difference lies in the SRAM Eagle 90 groupset and the Maven Bronze brakes, two items that can be upgraded later without touching the frame.

The RockShox ZEB belongs to the enduro fork category, beefier than a trail fork: it twists less when the front wheel hits a root at an angle, and steering stays precise under braking. Its Charger 3.2 RC2 damper offers compression and rebound adjustments that we set with you according to your weight and terrain.

On the red earth of the Salagou, dry and fast in summer but slippery after the slightest storm, the Maxxis Assegai front tyre in MaxxGrip compound bites well in corners, while the Minion DHR II rear in MaxxTerra brakes effectively without wearing too quickly. Their EXO+ casing protects against pinch flats on rocks.

Which Fuel should you choose?

Model	Frame	Travel rear / front	Drivetrain	Weight (M)
Fuel MX 9 XT	Alpha NEXT Platinum alloy	150 / 160 mm	Shimano XT 1x12	16.91 kg
Fuel MX 9.8 Eagle 90	OCLV Mountain carbon	150 / 170 mm	SRAM Eagle 90 T-Type 1x12	not published
Fuel MX 9.8 XT	OCLV Mountain carbon	150 / 160 mm	Shimano XT 1x12	not disclosed
Fuel LX 9.8 XT Di2	OCLV Mountain carbon	160 / 170 mm	Wireless Shimano XT Di2	15.97 kg

Our take: compared with the Fuel MX 9.8 XT, this 9.8 Eagle 90 has 10 mm more up front (170 versus 160 mm) with RockShox suspension. Neither has a published weight; the alloy Fuel MX 9 XT serves as a reference at 16.91 kg in M.

LVR sizing advice

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, from 150 mm in S to 200 mm from L upwards.

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

Lifts or pedalling?	Both: it climbs well under pedal power and can handle a few bike park days.
What tyre pressure?	It depends on your weight and the terrain; we set it with you once tubeless.
Are the brakes enough for descending?	Yes, 4-piston Maven with 200 and 180 mm rotors, suited to long slopes.
Is the purple eye-catching?	Rather dark: a deep mauve that reveals its amethyst tints in the sun.

The LVR Cycles verdict

A carbon all-mountain bike for those who earn their descents, with a 170 mm fork that forgives a lot. Its deep mauve with amethyst tints gives it a discreet but assertive character.

Pros
+ 170 mm ZEB fork
+ Descent-oriented Maxxis tyres
+ Original deep mauve

Cons
- Weight not published
- EXO+ casing to upgrade for intensive bike park use

Why buy from LVR Cycles? In Béziers, we prepare your Fuel MX in our workshop: tubeless set-up, Maven brake bleed if needed, sag adjustment and periodic servicing of the fork and shock.

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-5351831

Data sheet