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Aluminium full-suspension mountain bike Trek Fuel LX 9 Eagle 90 RockShox matte juniper/blue sage splatter 12-speed

Aluminium full-suspension mountain bike Trek Fuel LX 9 Eagle 90 matte green: climbing enduro, 160/170 mm, 17.38 kg

£4,757.65 Incl. Tax

Color

Bleu et Vert

Size

Size charts

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Trek Fuel LX 9 Eagle 90 Juniper: the enduro bike that is happy to climb

The Trek Fuel LX 9 Eagle 90 Gen 7 is not just a descending bike: its 30-tooth chainring and 10-52 cassette let it climb under its own steam, despite its 17.38 kg in a size M. A 170 mm RockShox ZEB Ultimate and a 160 mm Vivid Ultimate on an Alpha NEXT Platinum aluminium frame take care of the rest. The Matte Juniper/Blue Sage Splatter finish combines a matte juniper green with blue sage speckles.

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	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	17.38 kg in size M (Trek figure, with tubeless sealant)

At a glance

✓ 160 / 170 mm travel	✓ RockShox ZEB and Vivid Ultimate
✓ Mechanical Eagle 90, 10-52	✓ Four sizes, from S to XL
✓ Maxxis 29 x 2.5 EXO+ tyres	✓ 17.38 kg in size M

Who is it for?

The mountain biker who refuses shuttles and climbs on leg power alone will find a true companion here. This Fuel LX suits those who ride enduro "the old-school way", full loops with plenty of climbing, and want a bike that is stable on the descents without suffering on the climbs.

The LVR workshop view

An alloy frame that adjusts like a race frame. The Fuel LX 9 is built on Alpha NEXT Platinum aluminium, the highest grade of Trek's mountain bike alloys (above Alpha Platinum and Alpha Silver). What sets it apart is the kinematics: the progression can be changed, the rocker link and lower shock mount can be swapped, and the ABP pivot on the rear axle keeps the suspension working under braking.

	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: this frame adapts to your riding instead of imposing its own. It is heavier than the OCLV Mountain carbon of the 9.8, but it is more forgiving of impacts and easier to repair.

The secret of an enduro bike that climbs lies first in the position. The Race Face Turbine handlebar with 40 mm rise and the short 45 mm stem keep the upper body high; sliding the saddle slightly back on its rails helps keep the front wheel planted on steep ramps. We adjust these points at handover.

On the suspension side, the Charger 3.2 RC2 damper lets you firm up the low-speed compression to limit bobbing when pedalling. The Vivid Ultimate stays active, which preserves rear-wheel traction on the technical, rocky climbs of the Espinouse.

Which Fuel should you choose?

Model	Frame	Drivetrain	Travel rear / front	Weight (M)
Fuel MX 9 Eagle 90	Alpha NEXT Platinum alloy	Mechanical SRAM Eagle 90	150 / 160 mm	16.78 kg
Fuel LX 9 Eagle 90	Alpha NEXT Platinum alloy	Mechanical SRAM Eagle 90	160 / 170 mm	17.38 kg
Fuel LX 9 X0 AXS	Alpha NEXT Platinum alloy	Wireless SRAM X0 AXS	160 / 170 mm	n/a
Slash 8	Alpha Platinum alloy	Mechanical Shimano XT	170 / 170 mm	16.68 kg

Our take: for riders who climb a lot, this LX 9 Eagle 90 remains 600 g heavier than the MX 9 Eagle 90. The Slash 8 drops to 16.68 kg, but it is more aggressive with 170 mm at the rear.

LVR sizing advice

The four sizes from S to XL cover riders from 155 to 195 cm. Torn between two? We advise you based on your terrain: smaller size for twisty trails, larger for fast tracks.

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 really climb?	Yes, at a steady pace: the 30 x 52 and the upright position make climbing easier.
How do I limit bobbing?	Firm up the fork's low-speed compression; we will show you how.
What dropper travel?	150 mm in S, 170 mm in M, 200 mm in L and XL.
Does the matt green show the dirt?	It hides dust well; a rinse with water is enough after mud.

The LVR Cycles verdict

The alloy Fuel LX for mountain bikers who climb on their own before descending. Its juniper green speckled with blue sage blends into mountain landscapes.

Pros
+ Very low 30 x 52 gearing
+ Adjustable RockShox suspension
+ Original deep green

Cons
- 17.38 kg to haul uphill
- No suspension lockout on the bar

Why buy from LVR Cycles? As a Trek dealer in Béziers, we set up your position and suspension for climbing-friendly enduro, and service 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-5353712

Data sheet