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The Trek Fuel+ EX 9.8 Eagle 90 Gen 2 is an e-MTB with an adjustable OCLV Mountain carbon frame: adjustable head angle, adjustable suspension progression and an interchangeable lower shock mount. It pairs the TQ HPR60 motor with a 580 Wh battery and 145 / 150 mm RockShox Ultimate suspension, for 20.38 kg in size M according to Trek. The Lichen Green/Keswick Green Splatter sprinkles a very pale moss green with droplets of a deeper green.
| Frame | OCLV Mountain carbon, removable battery, adjustable head angle, adjustable progression, interchangeable alloy rocker links and lower shock mount, down tube protection, ABP, UDH, Boost |
| Motor | TQ HPR60: 60 Nm, 250 W continuous, 350 W peak |
| Battery | TQ 580 Wh, removable |
| Controls / display | TQ colour LED display with Bluetooth |
| Suspension | RockShox Lyrik Ultimate, DebonAir+ ButterCups, Charger 3.1 RC2, 150 mm / RockShox Super Deluxe Ultimate RC2T, 205 x 60 mm, 145 mm |
| Drivetrain | SRAM Eagle 90 T-Type 1x12, SRAM XX 165 mm cranks, XS-1275 10-52 cassette, GX Eagle chain |
| Brakes | SRAM Maven Bronze 4-piston hydraulic, HS2 200 mm rotors |
| Wheels / tyres | Bontrager Line Comp 30 / Maxxis Minion DHF MaxxGrip (front) and DHR II MaxxTerra (rear) 2.5 in, EXO+, Tubeless Ready, 27.5 rear in size 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 | 20.38 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 inquisitive mountain biker who likes to adapt their bike to the terrain of the day and develop it as their skills progress: calmer geometry for steep descents, livelier for twisting trails.
OCLV carbon, Trek's signature. Behind the OCLV acronym lies a process of curing the carbon plies under high pressure to eliminate micro-voids. For mountain biking, Trek developed a Mountain version whose layup prioritises impact resistance. On this Fuel+ EX 9.8 Eagle 90, the frame features an adjustable head angle and adjustable progression, and carries a lifetime warranty.
| Carbon Fuel+ EX (9.7 to 9.9) | Aluminium Fuel+ EX 8 | Fuel EXe (previous generation) | |
| Level | Carbon reserved for mountain bikes | Premium Trek aluminium | Previous-generation lightweight e-MTB |
| Construction | OCLV Mountain, impact reinforcements | Alpha NEXT Platinum | OCLV Mountain, HPR50 and 360 Wh |
| Reference bike | Fuel+ EX 9.8 Eagle 90: 20.38 kg (M) | Fuel+ EX 8: 21.68 kg (M) | Fuel EXe 9.7: 19.33 kg (M) |
| What it means | High-end suspension on carbon | Heavier, cheaper | 10 Nm and 220 Wh less |
Put simply: the 9.8 Eagle 90 is the Fuel+ EX that puts suspension first, with the same RockShox Ultimate pairing as the 9.9, a mechanical drivetrain and alloy wheels. It weighs 20.38 kg in M according to Trek.
The adjustable head angle changes the bike's character: slacker, it gains stability on steep slopes and rock gardens; steeper, it turns more easily through hairpins. Combined with the adjustable progression, it lets you switch from a trail setup to a more aggressive one without changing bikes.
These adjustments are made in the workshop with the right tool and a precise tightening torque; we always pair them with a sag and rebound check. On an e-bike like this one, limited to 25 km/h and 250 W, most of the fun happens on the way down: that is where these options really come into their own.
| Model | Frame | Motor / battery | Rear / front travel | Weight (M) |
| Fuel+ EX 9.7 Eagle 70 | OCLV Mountain carbon | TQ HPR60 / 580 Wh | 150 mm front | 20.68 kg |
| Fuel+ EX 9.8 Eagle 90 | OCLV Mountain carbon | TQ HPR60 / 580 Wh | 145 / 150 mm | 20.38 kg |
| Fuel+ EX 9.8 XT | OCLV Mountain carbon | TQ HPR60 / 580 Wh | 145 / 150 mm | 20.10 kg |
| Fuel+ LX 9.8 Eagle 90 | OCLV Mountain carbon | TQ HPR60 / 580 Wh | 160 / 170 mm | 20.88 kg |
Our take: all three colourways of the 9.8 Eagle 90 share this adjustable frame and weigh 20.38 kg in M. The Fuel+ MX 9.8 XT Di2, with 150 / 160 mm and 19.79 kg, goes further towards all-mountain.
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LVR sizing advice Between two sizes, the smaller one makes the 9.8 more playful in tight turns, the larger one more stable at high speed. The dropper goes from 150 mm in S to 200 mm from L upwards, and the S gets a 27.5-inch rear wheel.
Source: Trek size guide. Bike fitting available in our Béziers shop. |
| What does the head angle change? | Stability on descents or agility in corners, depending on the setting you choose. |
| Is a special tool needed? | A torque wrench and a methodical approach; we do it in the workshop. |
| What is progression? | The way the shock firms up towards the end of its stroke. |
| Does the speckled green age well? | Yes, the splatter effect hides minor marks from use. |
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The LVR Cycles verdict A carbon Fuel+ EX that adapts to its rider thanks to a highly adjustable frame and RockShox Ultimate suspension. The speckled lichen green gives it a very successful outdoorsy look.
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Why buy from LVR Cycles? In Béziers, we adjust the geometry of your Fuel+ EX to suit your riding, set up the suspension and explain every option when you collect the bike.
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