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The Trek Fuel+ MX 9.8 Eagle 90 pairs a 12-speed SRAM 10-52 cassette with the 60 Nm TQ HPR60 motor, enough to ride seated up climbs you used to finish on foot, with a 580 Wh battery for linking loops. Its OCLV Mountain carbon frame is suspended by a 170 mm RockShox ZEB Ultimate fork and offers 150 mm at the rear. Trek has not published a weight for this version: the 9.8 XT Di2, with the same frame and motor, weighs 19.79 kg in size M. The Lichen Green/Keswick Green Splatter scatters Keswick green splashes over a pale lichen green.
| Frame | OCLV Mountain carbon, removable battery, adjustable head angle and progression, 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, Bluetooth and connectivity |
| Suspension | RockShox ZEB Ultimate Charger 3.2 RC2 with ButterCups 170 mm / RockShox Vivid Ultimate 205 x 65 mm, 150 mm |
| Drivetrain | Mechanical SRAM Eagle 90 T-Type 1x12, XS-1275 10-52 cassette, GX Eagle T-Type chain, SRAM XX 165 mm cranks |
| Brakes | SRAM Maven Bronze 4-piston hydraulic, SRAM HS2 200 mm rotors |
| Wheels / tyres | Bontrager Line Comp 30 aluminium, mixed-wheel setup / Maxxis Assegai 29 x 2.5 MaxxGrip EXO+ (front) and Minion DHR II 27.5 x 2.5 MaxxTerra EXO+ (rear), 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 | Not published by Trek for this version; benchmark MX 9.8 XT Di2 (same frame, same motor): 19.79 kg in M |
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At a glance
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For the mountain biker looking for technical routes, both uphill and downhill, on the red-earth tracks around Lake Salagou or the rocky trails of the garrigue.
OCLV carbon, Trek's signature. With OCLV, Trek puts its fibres through a cycle of pressure and heat that leaves almost no porosity in the composite, a guarantee of long-term strength. Its Mountain version is designed for brutal use: hard impacts, flying stones and crashes. On the Fuel+ MX 9.8 Eagle 90, the gateway to the MX series, you get exactly the same carbon frame, its removable battery housing and the Trek lifetime warranty.
| Fuel+ (TQ HPR60) | Fuel EXe (TQ HPR50) | Rail+ (Bosch CX) | |
| Torque | 60 Nm | 50 Nm | Bosch Performance Line CX |
| Battery | 580 Wh, removable | 360 Wh | 800 Wh |
| Comparison weight (M) | 19.79 kg (MX 9.8 XT Di2) | 19.33 kg (EXe 9.7) | 23.73 kg (Rail+ 9.7) |
| What you gain | Lively bike, enough assist for all-mountain | Lightness, less reserve | Maximum reserve, more inertia |
Put simply: the 9.8 Eagle 90 spends its budget on RockShox Ultimate suspension, a 170 mm ZEB fork and Vivid shock, and keeps a mechanical SRAM drivetrain that is simple to maintain. To gauge its unpublished weight, refer to the Fuel+ MX 9.8 XT Di2 with an identical frame and motor: 19.79 kg in M.
The large 52-tooth sprocket and the torque of the HPR60 complement each other: you keep a smooth cadence as the gradient steepens, the rear wheel stays planted and the tyre does not spin. The assist stops at 25 km/h, with 250 W nominal, as set by European regulations.
The frame's adjustable head angle lets you tailor the handling: steeper to keep the front end precise on technical climbs, slacker for stability on descents. The 27.5-inch rear wheel also makes the bike easier to handle in the hairpins that punctuate the trails of the Hérault backcountry.
| Model | Motor / battery | Rear / front travel | Drivetrain | Weight (M) |
| Fuel+ EX 9.8 Eagle 90 | TQ HPR60, 580 Wh | 145 / 150 mm | SRAM Eagle 90 T-Type | 20.38 kg |
| Fuel+ MX 9.8 Eagle 90 | TQ HPR60, 580 Wh | 150 / 170 mm | SRAM Eagle 90 T-Type | not disclosed |
| Fuel+ MX 9.8 XT Di2 | TQ HPR60, 580 Wh | 150 / 160 mm | Wireless Shimano XT Di2 | 19.79 kg |
| Fuel+ LX 9.8 Eagle 90 | TQ HPR60, 580 Wh | 160 / 170 mm | SRAM Eagle 90 T-Type | 20.88 kg |
Our take: on the climbs, the 9.8 Eagle 90 and the 9.8 XT Di2 (19.79 kg in M) have the same motor and the same battery; the SRAM 10-52 cassette offers a slightly larger sprocket than the Shimano 10-51. The Fuel+ EX 9.8 Eagle 90 (20.38 kg) prioritises versatility with 145 / 150 mm.
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LVR sizing advice On the cusp of two sizes, choose the smaller one if you like to place the bike and jump, the larger one if you mostly ride fast on steep ground. All sizes get the 27.5-inch rear wheel, and the Line Dropper grows from 150 to 200 mm with the frame.
Source: Trek size guide. Bike fitting available in our Béziers shop. |
| Can it climb very steep slopes? | Yes, the 10-52 cassette and the motor's 60 Nm let you climb seated on steep gradients. |
| Is the head angle changed often? | No, you set it according to your main type of riding; we do it in the workshop. |
| How do I look after the battery? | Avoid leaving it empty or in direct sun, and charge it at room temperature. |
| Is the lichen green pale? | It is a soft, light green, lifted by Keswick green splashes. |
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The LVR Cycles verdict A Fuel+ MX that makes technical climbs accessible thanks to its 10-52 cassette and TQ assist, and inspires confidence on descents with its RockShox suspension. Its lichen green splashed with Keswick green adds a fresh touch.
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Why buy from LVR Cycles? As a Trek dealer in Béziers, we set up your Fuel+ MX for your routes, advise you on assist modes and battery charging, and service the Eagle 90 drivetrain.
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