Carbon full-suspension electric mountain bike Trek Fuel+ EX 9.8 XT Di2 smoke grey: TQ HPR60 580 Wh, 145/150 mm

Trek Fuel+ EX 9.8 XT Di2 Carbon Smoke: a wireless drivetrain that needs little maintenance

Designed for mountain bikers who want to ride more and adjust less, the Trek Fuel+ EX 9.8 XT Di2 Gen 2 combines a wireless Shimano XT Di2 derailleur, an XT 10-51 cassette and four-piston XT M8220 brakes. OCLV Mountain carbon frame, TQ HPR60 motor, 580 Wh battery, Fox Factory 145 / 150 mm. Trek has not published a weight for this version; refer to the 9.8 XT, with an identical frame and motor, quoted at 20.10 kg in size M. The Carbon Smoke/Lithium Grey Marble tints the frame a deep smoky grey run through with lithium grey veins.

Technical specifications

Who is it for?

For the mountain biker who rides several times a week and no longer wants to adjust cable tension, or put up with a gummed-up cable after wet winter rides.

The LVR workshop view

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.

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.

With a wireless derailleur, the idea of a slack cable disappears: shifting stays the same after hundreds of kilometres. Maintenance comes down to cleaning the chain, checking its wear and charging the derailleur battery, a simple habit to get into.

The XT M8220 brakes and 200 mm rotors keep their bite even on the long descents down to the Orb valley. We bleed them with Shimano mineral oil at the start of the season. The TQ motor, compliant with e-bike rules, cuts its assist at 25 km/h.

Which Fuel+ should you choose?

Our take: compared with the mechanical 9.8 XT (20.10 kg in M), the Di2 only adds electronics to the derailleur. The 9.9 X0 AXS goes further with a wireless dropper post and carbon wheels.

Your questions

Why buy from LVR Cycles? In Béziers, we configure your Di2, bleed your XT brakes and handle diagnostics and updates for the TQ motor.

Please note that the specifications may be changed without prior notice by the manufacturer, based on the availability of components and other factors.