Carbon full-suspension electric mountain bike Trek Fuel EXe 9.9 XX AXS: TQ HPR50 360 Wh, SRAM XX AXS, 18.68 kg

Trek Fuel EXe 9.9 XX AXS Mulsanne Blue: Trek's featherweight e-MTB

At a claimed 18.68 kg in size M, the Trek Fuel EXe 9.9 XX AXS is one of the brand's lightest full-suspension electric mountain bikes. It combines the TQ HPR50 motor (50 Nm, 300 W peak), a 360 Wh battery, a wireless SRAM XX Eagle AXS drivetrain, carbon wheels and RockShox Ultimate suspension with 150 mm up front and 140 mm at the rear. Mulsanne Blue, a deep metallic blue, dresses this carbon frame in an elegant shade.

Technical specifications

Who is it for?

For the demanding rider who wants an e-bike as lively as a high-end trail bike and refuses to compromise on spec. It will appeal to the experienced mountain biker who sometimes shoulders the bike over a rocky section, or who often loads it onto a bike rack.

The LVR workshop view

OCLV carbon, right through to the cockpit. On this 9.9, the Fuel EXe's OCLV Mountain frame is paired with Line Pro 30 carbon rims and an RSL one-piece bar/stem, also in carbon. The TQ HPR50 motor and its 360 Wh battery remain compact, so the whole bike comes in at 18.68 kg in M: one of Trek's lightest full-suspension e-MTBs, with a lifetime warranty on the frame.

Put simply: same chassis and same motor as the Fuel EXe 9.7, but everything that spins or sits under your hands moves to carbon or wireless, hence 650 g less on the scales.

The Line Pro 30 carbon rims and RSL one-piece bar/stem reduce rotating weight and weight at the front of the bike: out of a corner, the Fuel EXe accelerates like a conventional mountain bike, even when the assist stops above 25 km/h, the European limit for a 250 W rated motor. On the rock slabs of the Caroux, the front end's precision is remarkable.

The four-piston SRAM Code Ultimate brakes on 200 mm rotors are an enduro choice on a trail bike: they keep their bite on the long descents towards Lamalou. The Lyrik and Super Deluxe get AirWiz sensors that help you find the right air pressure; we set it when we hand the bike over.

Which Fuel EXe should you choose?

Our take: the 650 g difference from the Fuel EXe 9.7 (19.33 kg) comes from the wheels, the wireless drivetrain and the carbon cockpit, as the motor and battery are identical. The Fuel+ EX 9.8 XT offers 580 Wh for 1.42 kg more.

Your questions

Why buy from LVR Cycles? In Béziers, we pair the AXS components, update the TQ system, set up the RockShox suspension for your weight and service the Code brakes on your Fuel EXe.

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