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The Trek Fuel+ EX 9.8 XT Di2 Gen 2 brings together Fox Factory suspension, a 150 mm 36 GRIP X2 and a 145 mm Float X, Maxxis Minion DHF and DHR II tyres and a wireless Shimano XT Di2 derailleur. OCLV Mountain carbon frame, TQ HPR60 motor, 580 Wh battery. Trek has not published a weight for this version; for reference, the 9.8 XT, which shares the frame and drive system, weighs 20.10 kg in size M. Its Lichen Green/Keswick Green Splatter finish dots a pastel green with dark green specks, like a woodland floor.
| 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 | Fox Factory 36 GRIP X2, Float EVOL, 150 mm / Fox Factory Float X, 205 x 60 mm, 145 mm |
| Drivetrain | Shimano XT Di2 M8260 wireless 12-speed, XT M8200 10-51 cassette |
| Brakes | Shimano XT M8220 4-piston hydraulic, RT-6B750 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 | Weight not published by Trek for this version; benchmark: Fuel+ EX 9.8 XT, identical carbon frame and TQ drive system, 20.10 kg in size M |
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At a glance
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For the mountain biker who loves technical descents and wants to be able to shift at any moment, even when accelerating hard through a rough section, without fear of dropping the chain.
OCLV carbon, Trek's signature. OCLV is a moulding process in which heat and pressure fuse the fibre plies together without leaving any air, used by Trek for more than three decades. Its Mountain version is engineered for the terrain: it withstands the impacts an electric mountain bike takes, being heavier than a conventional one. Trek lifetime warranty on the frame.
| Carbon Fuel+ EX (9.7 to 9.9) | Aluminium Fuel+ EX 8 | Fuel EXe (previous generation) | |
| Level | Trek mountain bike carbon | High-end alloy | Former lightweight platform |
| Construction | Impact-resistant OCLV Mountain | Alpha NEXT Platinum | HPR50 with 50 Nm, 360 Wh |
| Reference bike | Fuel+ EX 9.8 XT: 20.10 kg (M) | Fuel+ EX 8: 21.68 kg (M) | Fuel EXe 9.7: 19.33 kg (M) |
| What it means | Basis of the Di2, same frame | 1.58 kg heavier than the 9.8 XT | More modest assist |
Put simply: the 9.8 XT Di2 carries over the frame, motor, Fox Factory suspension and brakes of the 9.8 XT; only the derailleur switches to wireless electronic shifting. Trek does not publish its weight, so the 9.8 XT at 20.10 kg in M remains the benchmark.
Di2 shifts with the same precision when the bike is being shaken about: you can drop a gear just before a tight turn or an acceleration, without hesitation. Paired with Maxxis Minion tyres with a MaxxGrip front, the 9.8 XT Di2 stays precise in the rock gardens of the Caroux.
The Fox 36 GRIP X2 and the Float X can be finely tuned; we start from your riding weight with kit and your terrain to establish a base setting. The TQ assist, capped at 25 km/h and 250 W as on any e-bike, is mainly there to get you back up faster so you can link more descents.
| Model | Frame | Motor / battery | Rear / front travel | Weight (M) |
| Fuel+ EX 9.8 XT | OCLV Mountain carbon | TQ HPR60 / 580 Wh | 145 / 150 mm | 20.10 kg |
| Fuel+ EX 9.8 XT Di2 | OCLV Mountain carbon | TQ HPR60 / 580 Wh | 145 / 150 mm | not disclosed |
| Fuel+ EX 9.9 X0 AXS | OCLV Mountain carbon | TQ HPR60 / 580 Wh | 145 / 150 mm | not disclosed |
| Fuel+ MX 9.8 XT Di2 | OCLV Mountain carbon | TQ HPR60 / 580 Wh | 150 / 160 mm | 19.79 kg |
Our take: with suspension identical to the 9.8 XT (20.10 kg in M), the Di2 is justified by its electronic shifting. If you want 150 / 160 mm, the Fuel+ MX 9.8 XT Di2 weighs 19.79 kg in M.
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LVR sizing advice Between two sizes, the smaller one suits you if you like to play with the terrain, the larger one if you ride fast and far. The S runs a 29 / 27.5 setup with a 150 mm dropper, the M 170 mm, the larger sizes 200 mm.
Source: Trek size guide. Bike fitting available in our Béziers shop. |
| Is Di2 reliable on descents? | Yes, it is designed for mountain biking and shifts even when being shaken about. |
| Which tyres come fitted? | Maxxis Minion DHF MaxxGrip up front, DHR II MaxxTerra at the rear. |
| Suspension setup? | We establish a base setting according to your weight and terrain. |
| Is the speckled green understated? | Fairly, the lichen green blends in nicely in the woods. |
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The LVR Cycles verdict A Fuel+ EX built for technical descending, with the precision of Di2 and very comprehensive Fox suspension. The speckled lichen green gives it a natural look.
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Why buy from LVR Cycles? As a Trek dealer in Béziers, we set up your Fox suspension, configure the Di2 and update the TQ motor on your Fuel+ EX.
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