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The Trek Fuel EX 9 Eagle 90 Gen 7 features a 150 mm Lyrik Ultimate, a Super Deluxe Ultimate shock for 145 mm, a MaxxGrip-compound Maxxis Minion DHF at the front and SRAM Maven Bronze brakes. The Alpha NEXT Platinum aluminium frame brings the package to 16.58 kg in size M according to Trek. Matte Juniper/Blue Sage Splatter is a matt juniper green flecked with sage blue.
| Frame | Alpha NEXT Platinum aluminium, adjustable progression, interchangeable rocker and shock mount, internal storage, threaded BSA 73, ISCG 05 |
| Suspension | RockShox Lyrik Ultimate DebonAir+ Charger 3.1 RC2 150 mm fork / RockShox Super Deluxe Ultimate RC2T 205x60 mm shock, 145 mm |
| Drivetrain | Mechanical SRAM Eagle 90 T-Type 1x12, DUB 30T chainset, XS-1275 10-52 cassette |
| Brakes | SRAM Maven Bronze hydraulic 4-piston, HS2 rotors 200 mm (front) and 180 mm (rear) |
| Wheels / tyres | Bontrager Line Comp 30 Tubeless Ready / Maxxis Minion DHF MaxxGrip (front) / Minion DHR II MaxxTerra (rear), 2.5 in, 3C EXO+; 27.5 rear on S |
| 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 | 16.58 kg in size M (Trek figure, with tubeless sealant, no inner tubes) |
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At a glance
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For the mountain biker who rides all year round, including autumn and winter, on forest trails where roots and fallen leaves make every corner uncertain. It suits riders who value confidence over lightness.
Alpha aluminium, Trek's expertise. For the Gen 7 Fuel, Trek did not keep the new features for carbon alone: its most refined alloy, Alpha NEXT Platinum, gets the same modular platform. The rocker and lower shock mount can be swapped to change the geometry and end-stroke behaviour, and the ABP pivot on the rear axle helps the suspension stay active when you brake. Storage is hidden in the down tube.
| Alpha Silver | Alpha NEXT Platinum | OCLV Mountain | |
| Level | Trek's entry-level alloy | The most refined of the Alpha alloys | Trek's mountain bike carbon |
| Construction | Alpha aluminium, hardtail frame | Alpha aluminium, adjustable Fuel platform | OCLV process tuned for impacts |
| Reference bike | Marlin 4 to 7 | Fuel EX 5, 8 and 9 | Fuel EX 9.8 and 9.9 |
| What it means | Simple and affordable, no rear suspension | 4.95 kg frameset in M, tough and more affordable | 3.31 kg frameset in M, 1.64 kg less |
Put simply: this Fuel EX 9 Eagle 90 puts the money into suspension, brakes and tyres rather than the frame. With equivalent suspension, the carbon of a Fuel EX 9.8 saves weight, not descending performance.
In the beech woods of the Montagne Noire, after rain, the MaxxGrip compound of the front tyre makes the difference: softer, it clings to wet roots where a harder compound slides. The MaxxTerra DHR II at the rear keeps good longevity.
On damp ground, modulation matters more than raw power: the Maven Bronze brakes can be controlled with a fingertip, preventing the wheel from locking on greasy ground. After muddy rides, we recommend cleaning the fork seals and pivots regularly; we do it during servicing.
| Model | Frame | Fork / rear | Drivetrain | Weight (M) |
| Fuel EX 8 | Alpha NEXT Platinum alloy | Fox Rhythm 36, 150 / 145 mm | SRAM Eagle 70 1x12 | 16.58 kg |
| Fuel EX 9 Eagle 90 | Alpha NEXT Platinum alloy | RockShox Lyrik Ultimate, 150 / 145 mm | SRAM Eagle 90 1x12 | 16.58 kg |
| Fuel EX 9 XT | Alpha NEXT Platinum alloy | Fox Factory 36, 150 / 145 mm | Shimano XT 1x12 | 17.14 kg |
| Fuel EX 9 X0 AXS | Alpha NEXT Platinum alloy | RockShox Lyrik Ultimate, 150 / 145 mm | SRAM X0 AXS T-Type 1x12 | not disclosed |
Our take: at 16.58 kg in M, this Fuel EX 9 Eagle 90 is the lightest aluminium Fuel EX 9 with a published weight. The heavier Fuel EX 9 XT offers Fox Factory suspension; the X0 AXS adds wireless shifting.
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LVR sizing advice Between two sizes, we recommend the smaller one if you like playing with the terrain, the larger one if you want stability at high speed. The Line Dropper post goes from 150 mm in S to 200 mm in L and XL; the S rolls on a 27.5-inch rear wheel.
Source: Trek size guide. Bike fitting available in our Béziers shop. |
| Can I ride it in winter? | Yes, with a front mudguard and regular cleaning of the pivots and seals. |
| Does MaxxGrip rubber wear quickly? | Faster than a harder compound, which is why it is fitted at the front only. |
| Which sizes for this green? | S, M, L and XL. |
| Does the matt green show the dirt? | It hides dried mud well; a gentle rinse is enough. |
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The LVR Cycles verdict A reassuring Fuel EX 9 in damp woodland, thanks to its MaxxGrip tyres and easy-to-modulate brakes. The Juniper green flecked with sage blue suits it perfectly in the forest.
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Why buy from LVR Cycles? As a Trek dealer in Béziers, we service the suspension of your Fuel EX 9 after the wet seasons and advise you on the right tyres for each time of year.
Please note that the specifications may be changed without prior notice by the manufacturer, based on the availability of components and other factors.
Data sheet
Specific References