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Carbon full-suspension electric mountain bike Trek Fuel EXe 9.7 XT deep smoke 12-speed

Carbon full-suspension electric mountain bike Trek Fuel EXe 9.7: TQ HPR50 360 Wh, Fox 140/150 mm, 19.33 kg

€4,949.00 Incl. Tax

~~€5,559.00~~ MSRP

-10%

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Black

Size

Size charts

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Trek Fuel EXe 9.7 Deep Smoke: the e-bike you forget is electric

The Trek Fuel EXe 9.7 is an OCLV Mountain carbon electric trail bike, powered by the 50 Nm TQ HPR50 motor and a 360 Wh TQ battery, with 140 mm of rear travel and a 150 mm Fox Rhythm 36 fork. It weighs 19.33 kg in size M according to Trek, a rare figure for a full-suspension e-MTB. Its Deep Smoke colourway, a very understated smoky charcoal grey, reinforces its muscular, non-assisted mountain bike looks.

Technical specifications

Frame	OCLV Mountain carbon, removable battery, alloy rocker link, Mino Link, ABP, Boost148, UDH, 140 mm travel
Motor	TQ HPR50, 50 Nm, 250 W rated, assist up to 25 km/h
Battery	Removable TQ 360 Wh
Suspension	Fox Rhythm 36 GRIP 150 mm / Fox Performance Float X 2-position, 140 mm
Drivetrain	Shimano 1x12: XT M8100 derailleur, SLX 10-51 cassette, SLX chain, E*thirteen 165 mm cranks
Brakes	Shimano 4-piston hydraulic (M6100 lever, M6120 caliper), RT66 203 mm rotors front and rear
Wheels / tyres	Bontrager Line Comp 30 / Bontrager XR5 Team Issue 29 x 2.50, Tubeless Ready
Cockpit	Bontrager 35 mm handlebar, 780 mm, 27.5 mm rise, Bontrager Elite 45 mm stem
Saddle / seatpost	Bontrager saddle / 150 mm dropper post
Weight	19.33 kg in size M (Trek figure, with tubeless sealant)

At a glance

✓ Quiet TQ HPR50 motor	✓ Removable TQ 360 Wh battery
✓ OCLV Mountain carbon	✓ 140 mm rear, 150 mm front
✓ Shimano XT / SLX 12-speed	✓ 19.33 kg in size M

Who is it for?

For the trail rider who wants a helping hand on the climbs without losing the agility of their current bike. It also suits anyone who is hesitant about going electric for fear of a heavy, noisy machine: here the assist stays discreet and the bike is still easy to lift and carry.

The LVR workshop view

OCLV Mountain carbon, built for a discreet e-MTB. The Fuel EXe was designed around the compact TQ HPR50 motor housed in the bottom bracket area: with no bulky motor casing, the carbon frame keeps the lines of a conventional mountain bike. Trek's OCLV process compacts the fibre layers under heat to drive out voids, and the Mountain version reinforces the areas exposed to rock strikes. The result: an electric bike under 20 kg, with a lifetime warranty on the frame.

	Fuel EXe (TQ HPR50)	Slash+ (TQ HPR60)	Rail+ (Bosch CX)
Motor torque	50 Nm	50 Nm (HPR50) or 60 Nm (HPR60)	85 Nm, up to 100 Nm via the app
Battery	TQ 360 Wh	TQ 580 Wh	Bosch PowerTube 800 Wh
Weight (M)	18.68 to 19.33 kg	20.38 to 21.83 kg	23.73 to 25.08 kg
What it means	Feels close to a non-assisted mountain bike	Light enduro, more range	Full power, more weight

Put simply: the Fuel EXe 9.7 is the carbon entry point to this lightweight e-MTB; it shares its frame, motor and battery with the 9.9, which saves just 650 g thanks to its carbon wheels and wireless drivetrain.

The TQ HPR50 uses a harmonic pin-ring transmission instead of conventional gears: it doesn't whine and creates no noticeable drag when the assist cuts out at 25 km/h, as European regulations require for a 250 W rated motor. On the wooded singletrack of the Montagne Noire, you hear the rear wheel on the leaves rather than the motor.

The trade-off lies in the 360 Wh battery: less in reserve than a Rail+, so you need to manage the assist modes more carefully on long loops. On the other hand, the E*thirteen cranks and 10-51 cassette give a low gear that helps save energy, and the removable battery can be charged separately at home.

Which Fuel EXe should you choose?

Model	Motor / battery	Rear / front travel	Drivetrain	Weight (M)
Fuel EXe 9.7	TQ HPR50 / 360 Wh	140 / 150 mm	Shimano XT / SLX 12-speed	19.33 kg
Fuel EXe 9.9 XX AXS	TQ HPR50 / 360 Wh	140 / 150 mm	Wireless SRAM XX AXS	18.68 kg
Fuel+ EX 9.8 XT	TQ HPR60 / 580 Wh	145 / 150 mm	Shimano XT 12-speed	20.10 kg
Slash+ 9.7 SLX/XT	TQ HPR50 / 580 Wh	170 / 170 mm	Shimano SLX / XT 12-speed	20.38 kg

Our take: at 19.33 kg in M, this Fuel EXe 9.7 weighs 4.4 kg less than the Rail+ 9.7 XT (23.73 kg), at the cost of a 360 Wh battery instead of 800 Wh. The Fuel+ EX 9.8 XT steps up to 580 Wh and 60 Nm for 20.10 kg.

LVR sizing advice

This colourway only comes in size M, designed by Trek for riders from 165 to 177 cm with an inseam of 79 to 83 cm. Outside that range, or if you are between sizes, come and check your position in store before making up your mind.

Size	M
Rider height (cm)	165-177
Inseam (cm)	79-83
Dropper post (mm)	150
Front / rear wheels (in)	29 / 29

Source: Trek size guide. Bike fitting available in our Béziers shop.

Your questions

Does the TQ assist feel natural?	Yes, the HPR50 delivers its 50 Nm smoothly and silently, close to pedalling without a motor.
Can the battery be removed?	Yes, the 360 Wh TQ battery is removable for charging or dry storage.
Which size for this colourway?	It is available in M, for riders from 165 to 177 cm according to the Trek guide.
Does the smoky grey show the dirt?	No, this dark shade hides dust well; a protective film shields the carbon from rubbing.

The LVR Cycles verdict

A light, quiet electric trail bike that keeps the playful character of a conventional mountain bike. The Deep Smoke grey gives it a discretion that matches its motor.

Pros
+ Just 19.33 kg in size M
+ Very quiet TQ motor
+ Looks like a non-assisted mountain bike

Cons
- 360 Wh battery to manage on big days out
- Fox Rhythm fork less adjustable than a Factory

Why buy from LVR Cycles? As a Trek retailer in Béziers, we update the TQ software on your Fuel EXe, set up the fork and shock for your weight and advise you on charging and storing the battery.

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

Reference TRK-5299659

Data sheet