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The Trek Fuel+ MX 9.8 XT is an all-mountain electric mountain bike in OCLV Mountain carbon, driven by the 60 Nm TQ HPR60 motor and a 580 Wh battery, with 150 mm of rear travel and a 160 mm Fox Factory 36 fork. On the scales, weight not published by Trek for this version; benchmark: the 9.8 XT Di2, with the same frame and drive system, weighs 19.79 kg in size M. The Gloss Navy Smoke/Matte Trek Black pairs a glossy smoky navy with matt black.
| 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 | Fox Factory 36 Float EVOL GRIP X2 160 mm / Fox Factory Float X 205 x 60 mm, 150 mm |
| Drivetrain | Mechanical Shimano XT 1x12, M8200 long-cage derailleur, XT M8200 10-51 cassette, XT M8100 chain |
| Brakes | Shimano XT M8220 4-piston hydraulic, Shimano 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 MaxxGrip Double Down (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 who wants a motor's help on long climbs without giving up a bike they can maintain themselves: cable changes, indexing adjustment, parts available everywhere. Also ideal for bikepacking, far from any workshop.
OCLV carbon, Trek's signature. OCLV is the name of Trek's carbon know-how: a moulding process in which pressure and temperature eliminate air trapped between the fibre plies, for a dense wall with no weak points. The Mountain branch of this carbon accepts a few extra grams in exchange for better resistance to rock strikes and crashes. The Fuel+ MX 9.8 XT uses it to create a frame that houses a 580 Wh TQ battery you remove for charging, with a very compact HPR60 motor, and that Trek covers with a lifetime warranty.
| Fuel+ (TQ HPR60) | Fuel EXe (TQ HPR50) | Rail+ (Bosch CX) | |
| Motor torque | 60 Nm (350 W peak) | 50 Nm | Bosch Performance Line CX |
| Battery | 580 Wh removable | 360 Wh | PowerTube 800 Wh |
| Reference weight (M) | 19.79 kg (MX 9.8 XT Di2) | 19.33 kg (EXe 9.7) | 23.73 kg (Rail+ 9.7) |
| What it means | Balance between lightness and range | Lighter, less range | More battery, noticeably heavier |
Put simply: the Fuel+ MX 9.8 XT keeps the essentials of the MX with electronic shifting, carbon frame, TQ motor and Fox Factory suspension, but goes back to a cable-operated Shimano XT derailleur. With no published weight for this version, the reference remains the 9.8 XT Di2, identical apart from the drivetrain: 19.79 kg in size M.
The TQ HPR60 motor stands out for its discretion: compact and quiet, it delivers 60 Nm and up to 350 W peak, then fades out at 25 km/h as European e-bike regulations require, with 250 W nominal. On the long tracks climbing to the ridges of the Espinouse, this measured assist keeps the pedalling natural and spares the 580 Wh battery.
With an M8200 derailleur and an XT 10-51 cassette, the drivetrain handles the motor's torque while remaining easy to put right: a clean cable and housing are enough to restore crisp shifting.
| Model | Motor / battery | Rear / front travel | Drivetrain | Weight (M) |
| Fuel+ EX 9.8 XT | TQ HPR60, 580 Wh | 145 / 150 mm | Mechanical Shimano XT | 20.10 kg |
| Fuel+ MX 9.8 XT | TQ HPR60, 580 Wh | 150 / 160 mm | Mechanical Shimano XT | 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 XT | TQ HPR60, 580 Wh | 160 / 170 mm | Mechanical Shimano XT | not disclosed |
Our take: the 9.8 XT and the 9.8 XT Di2 share the frame, motor, battery and Fox Factory suspension; only the derailleur changes. Compared with the Fuel+ EX 9.8 XT (145 / 150 mm, 20.10 kg in M), the MX adds 5 mm at the rear and 10 mm up front.
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LVR sizing advice Between two sizes, the smaller one makes the Fuel+ MX livelier through switchbacks, the larger one more composed as speed rises. The dropper post goes from 150 mm in S to 200 mm from L upwards, and all sizes run 29-inch up front and 27.5 at the rear.
Source: Trek size guide. Bike fitting available in our Béziers shop. |
| Why is there no official weight? | Trek has not published it for this version; the 9.8 XT Di2, with the same frame and motor, weighs 19.79 kg in M. |
| Can the battery be removed? | Yes, the 580 Wh TQ battery is removable, handy for charging indoors. |
| Is the drivetrain suited to an e-MTB? | Yes, the 12-speed XT copes with the assist; we check chain wear more often. |
| Is the navy understated? | Yes, this glossy smoky blue looks almost black in the shade and brightens in the sun. |
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The LVR Cycles verdict A light, rational all-mountain e-MTB that leaves the handling to the carbon frame and Fox Factory suspension and keeps a drivetrain you can repair yourself. The smoky navy over matt black gives it an understated, polished look.
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Why buy from LVR Cycles? As a Trek dealer in Béziers, we set up your Fuel+ MX for your weight and update the TQ system at every service.
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