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Fuel EXe 9.8

Model 5272551

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Trek Bicycle Westerville

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5985 Maxtown Road, , Ohio, Westerville, 43082

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You're a trail rider who wants the best of both traditional and e-mountain bikes. You don't want to compromise on nimble control for power, but want a little assist on the ups. You appreciate the latest technology and want upgrades where they matter most. You don't want to lose out on the natural experience of mountain biking and want a refined motor that quietly assists while you ride.

An OCLV Mountain Carbon frame equipped with a fully-encased 360Wh battery and TQ harmonic pin ring transmission with a smart charging port, integrated LED display, and discreet handlebar remote. Plus, a 150mm RockShox Lyrik Select+ fork with DebonAir spring and Charger 2.1 RC damper, and 140mm RockShox Super Deluxe Select+ rear suspension. All wrapped up with the precise shifting and modulation of a Shimano XT drivetrain.

Fuel EXe 9.8 is an e-bike that evolved for the trail, with a lively and playful ride on descents and intuitive assist that adapts to your riding on the climbs. Its equipped with a tiny and powerful TQ transmission that tucks away quietly so you can stay in the moment on the trail, and is finished off with precise shifting of Shimano XT, carbon wheels, and an upgraded suspension package, putting your money where it matters most.

It finds the perfect balance between a traditional and electric ride, with adaptive assist that disappears under you on climbs, and a nimble ride that feels natural and playful on descents
Its tiny but mighty TQ motor is tuned for the trail, keeping things quiet so you can stay in the moment, and ramps up power with you for a natural ride feel
The smart charge port, sleek integrated display, and discreet controls keep the bike looking and feeling like a traditional mountain bike
It keeps your ride silky smooth even when the trail gets rowdy thanks to the upgraded RockShox suspension package that offers 150mm of front and 140mm of rear travel
You'll be able to add on a range extender when you want a little extra fuel in the tank for big days on the bike

Certified to UL 2849 by ACT Labs LLC. For additional lithium ion battery safety, click here.

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"That tiny harmonic pin ring drive unit is the golden goose of e-bike motors." Find out what Pinkbike had to say about the revolutionary motor at the heart of Fuel EXe.

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"Overall, the Trek Fuel EXe is a bike that ranked consistently well across the board when it came to performance on the trail. It does everything pretty darn well and would be a great jack of all trades lightweight eBike for those looking to have a mid-power eMTB for trail shredding fun."

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"This is the first time an e-bike has made my Gear of the Year list [...] in addition to being silent, the HPR50 motor feels frictionless while pedaling. The assistance comes on with a subtlety that makes it feel like you are a younger, fitter version of yourself with a tailwind at your back."

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"The low-key, silent assist is just enough, keeping it riding like a real mountain bike but making the climbs less sucky. Don’t get me wrong, I love a good high-power eMTB, but I loved this bike, too. Trek’s Fuel EX’s handling is dialed, and this is merely an enhanced version of that. I tested the top model, but, fortunately, there are also mid-priced models that eschew some of the AirWiz(ardy) without giving up any of what makes this bike rad."

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"Simply put, nothing comes close to the Fuel EXe when you paint the picture of the mountain bike experience as a whole."

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"The Trek Fuel EXe is the bike (e or otherwise) that plenty of people have been waiting to see… Removes the final few issues that the e-curious crowd had."

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"The Fuel EXe is such a harmonious package that I got comfortable with it very quickly, and it wasn’t much longer before I was in love with this bike...I legitimately forgot that I was on an e-bike at times…it’s the most natural feeling motor I’ve yet ridden."

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"We have to call it as we see it and the Trek Fuel EXe just elevated the eMTB game."

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"The first impression was a unanimous 'Wow.' This is one of the few times that a bike exceeded expectations."

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"There are times when I am left amazed by something new and shiny, and that is the case with the Trek Fuel Exe...I might even go as far as to call it an engineering marvel."

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Still have questions?

Check out our seven reasons why Trek is the smarter e-bike investment.

See why Trek's for you

Electric bike rebate programs are popping up all over the country, meaning you could save big when you buy a Trek e-bike! See if you're eligible for a rebate near you.

Time to bust out the repair stand for some maintenance? Find a detailed breakdown of your bike with part numbers, torque values, and platform-specific tech instructions below.

Follow along as Jason from Mahalo My Dude unboxes and builds a brand new Fuel EXe.

Watch the video

Psychoacoustics? Tonality? Articulation index? We put a lot of thought into making Fuel EXe as quiet as possible. Like, a lot.

R-Dog shows off just how capable the Fuel EXe really is in this edit set to a Charley Crockett classic.

Everything you need (and nothing you don’t).

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TQ HPR Range Extender Battery

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TQ HPR Range Extender Battery

$549.99

Fox Racing Defend Mountain Bike Short

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Fox Racing Defend Mountain Bike Short

$64.93 $119.95

Fox Racing Flexair Women's Mountain Bike Short

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Fox Racing Flexair Women's Mountain Bike Short

$64.93 - $87.99 $109.95 - $119.95

Bontrager Blaze WaveCel Mountain Bike Helmet

Bontrager Blaze WaveCel Mountain Bike Helmet

$149.99 - $199.97 $299.99

Trek Line Elite Clipless Pedal Set

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Trek Line Elite Clipless Pedal Set

$99.93 - $119.99 $119.99

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TQ-HPR50 motor is super-efficient with an amazing power-to-weight ratio. Most motors use gears and belts that take up space and can make noise or break. The TQ-HPR50 uses a harmonic pin-ring drive transmission that’s small, ultra-quiet, and unbelievably natural feeling.

Give yourself 40% more range with an optional 160wh external battery. It fits in a standard bottle cage and doesn’t require any complicated wiring or special mounts.

The Trek Central app seamlessly connects with your bike for custom motor tuning, activity tracking and more ways to analyze and personalize your ride. You even get navigation features and real-time range calculations.

The 360 Wh battery gives you power for 2-5 hours. It’s concealed in the downtube, but it’s still easy to remove for more convenient charging.

Active Braking Pivot allows our engineers to tune how the suspension reacts to acceleration and braking forces independently. That means you get more confident control when you need it most.

Shimano XT is the original mountain bike groupset and trusted by generations of mountain bikers around the world. Whatever the trail, wherever you ride, XT is your solution for mountain biking today. Reliable shifting. Superior braking. Intuitive maintenance. XT is the high performance workhorse you can count on.

Compliant with leading safety regulations

Learn how we ensure our e-bikes meet or exceed the latest safety regulations

You almost forgot your pedals

This bike doesn’t come with pedals because you'll have a better ride if you choose your own. Explore the pedal guide to find the best pedals for your riding style. Reach for flat pedals for simple versatility or go for clipless MTB pedals if you want control & efficiency.

Suspension Calculator

This suspension calculator will help you optimize your suspension settings for your riding weight. Simply follow the steps to find your best set up.

Carbon Care Wheel Loyalty Program

Every set of Bontrager carbon wheels is backed by the Carbon Care Wheel Loyalty Program. In the unlikely event that you damage your Bontrager carbon wheels within the first two years of ownership, we’ll repair or replace them for free.

Complete Tubeless System

Tubeless Ready rims and tires make it easy to ditch the tubes so you get better traction, fewer flats, and less weight. You're ready to roll right out of the box with the included TLR rim strips, valves, and sealant.

Integrated display

Fuel EXe's display is simple to use and protected in the top tube. Check your assist level, range, speed, and more at a glance.

Sleek and simple remote

Toggle between assist modes or engage the walk-assist function with the ergonomic low-profile remote.

Easier internal routing

Integrated channels in the frame make it easy to route the brake hose, dropper and derailleur housing so you get a clean set-up with no hassle.

Watch the video

Rapid Drive 108 rear hub

With 108 points of engagement, Rapid Drive gives you nearly instant acceleration instead of a clunky lag when you step on the pedals. You get smooth, immediate power to blast out of corners and hammer through the rough stuff. And that extra pedal ratchet adds control that can make all the difference when tackling a tricky climb.

Oversized 34.9mm dropper post

Bigger is better. The oversized seat tube diameter gives more support and strength for longer travel droppers, and allows for more robust, durable internals that work faster.

Mino Link adjustable geometry

Fine tune head tube angle by 1/2° and BB height by up to 10mm with the simple turn of a nut. Just flip the link to choose between slack or slacker geometry, without negatively affecting suspension performance. A Trek exclusive.

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*Please note - spec applies to all sizes unless listed separately

Frame	OCLV Mountain Carbon, removable battery, internal routing, alloy rocker link, 34.9mm seat tube, upper chain guide mount, 55mm chainline, Mino Link, ABP, Boost148, UDH, 140mm travel
Fork	RockShox Lyrik Select+, DebonAir spring, Charger 2.1 RC damper, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 150mm travel
Shock	RockShox Super Deluxe Select+ RT, 205mm x 60mm
Max compatible fork travel	160mm

Wheel front	Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 29''
Wheel rear	Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru axle, 29''
Hub front	Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle
Skewer rear	Bontrager Switch thru axle, removable lever
Rim	Bontrager Line Elite 30, Tubeless Ready
Tire	Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29x2.50''
Tire part	Bontrager TLR sealant, 6oz
Rim strip	Bontrager TLR
Max tire size	Frame: 29x2.50", Fork: See manufacturer

Battery	TQ 360Wh
Charger	TQ 4A charger
Computer	TQ LED display with Bluetooth & ANT+ connectivity
Motor	TQ-HPR50, 50 Nm, 250 watt maximum continuous rated power, 300 watt peak power

Shifter	Shimano XT M8100, 12 speed
Rear derailleur	Shimano XT M8100, long cage
Crank	Ethirteen Espec Race carbon, 34T, 165mm length
Chainring	Ethirteen Espec, 32T alloy ring, 55mm chainline
Cassette	Shimano XT M8100, 10-51, 12 speed
Chain	Shimano Ultegra/XT M8100, 12 speed
Max chainring size	1x: 34T, min 30T

Saddle	Bontrager Arvada, austenite rails, 138mm width
*Seatpost	Size: S Bontrager Line Elite Dropper, 100mm travel, MaxFlow, internal routing, 34.9mm, 345mm length
	Size: M Bontrager Line Elite Dropper, 150mm travel, MaxFlow, internal routing, 34.9mm, 440mm length
	Size: L Bontrager Line Elite Dropper, 170mm travel, MaxFlow, internal routing, 34.9mm, 485mm length
	Size: XL Bontrager Line Elite Dropper, 200mm travel, MaxFlow, internal routing, 34.9mm, 550mm length
*Handlebar/stem (integrated)	Size: S Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 27.5mm handlebar rise, 820mm width, 0 degree stem rise, 35mm stem length
*Handlebar/stem (integrated)	Size: M, L, XL Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 27.5mm handlebar rise, 820mm width, 0 degree stem rise, 45mm stem length
Grips	Bontrager XR Trail Elite, nylon lock-on
Brake	Shimano XT M8120 4-piston hydraulic disc
*Brake rotor	Size: S, M, L, XL Shimano RT76, 6-bolt, 180mm
*Brake rotor	Size: S, M, L, XL Shimano RT76, 6-bolt, 203mm
Rotor size	Max brake rotor sizes - Frame: 203mm, Fork: see fork manufacturer

Weight	M - 18.10 kg / 39.91 lbs (with TLR sealant, no tubes)
Weight limit	This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, materials, and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice. Prices shown are manufacturer's suggested retail prices.

Bike and frame weights are based off pre-production painted frames at time of publication. Weights may vary in final production.

How tall are you?

To measure your height, stand straight up, barefoot, with your back, heels, shoulders and head all touching a wall. While looking straight ahead, place a book or straight edge on your head and slowly push it against the wall. Your straight edge should be parallel with the floor. Mark the spot where the bottom of the book is touching the wall. The distance from the marked spot to the floor is your height.

What is your inseam?

How to measure: Stand barefoot with your back straight and against a wall. Tuck a ruler or something that extends to the floor between your legs. Using both hands, and keeping it level, pull the ruler up into your crotch as if you were sitting on the saddle. Measure the distance from the top edge of the ruler to the ground to find your inseam measurement. Your inseam is very important to your final bike size so please measure carefully.

size-table
Size	Rider Height	Inseam
S	155 - 165 cm 5'1" - 5'5"	74 - 78 cm 29" - 31"
M	165 - 176 cm 5'5" - 5'9"	79 - 83 cm 31" - 33"
L	177 - 188 cm 5'10" - 6'2"	84 - 89 cm 33" - 35"
XL	188 - 195 cm 6'2" - 6'5"	89 - 91 cm 35" - 36"

All measurements provided in cm unless otherwise noted.

Sizing table
Frame size number	Frame size letter	Geometry position	Wheel size	A — Seat tube	B — Seat tube angle	Effective seat tube angle	C — Head tube length	D — Head angle	E — Effective top tube	F — Bottom bracket height	G — Bottom bracket drop	H — Chainstay length	I — Offset	J — Trail	K — Wheelbase	L — Standover	M — Frame reach	N — Frame stack
15.5"	S	High	29"	38.0	69.3°	77.3°	10.0	65.3°	57.2	34.1	3.2	43.8	4.4	12.4	118.7	73.2	43.4	61.6
15.5"	S	Low	29"	38.0	68.8°	76.8°	10.0	64.8°	57.3	33.4	3.9	44.0	4.4	12.7	118.8	72.6	42.8	62.0
17.5"	M	High	29"	41.0	69.8°	77.3°	11.0	65.3°	59.9	34.1	3.2	43.8	4.4	12.4	121.6	73.3	45.9	62.5
17.5"	M	Low	29"	41.0	69.3°	76.8°	11.0	64.8°	60.0	33.4	3.9	44.0	4.4	12.7	121.7	72.7	45.3	62.9
19.5"	L	High	29"	43.5	70.8°	77.3°	11.0	65.3°	62.9	34.1	3.2	43.8	4.4	12.4	124.6	73.9	48.9	62.5
19.5"	L	Low	29"	43.5	70.3°	76.8°	11.0	64.8°	63.0	33.4	3.9	44.0	4.4	12.7	124.7	73.3	48.3	62.9
21.5"	XL	High	29"	47.0	71.3°	77.3°	12.0	65.3°	65.6	34.1	3.2	43.8	4.4	12.4	127.6	75.9	51.4	63.4
21.5"	XL	Low	29"	47.0	70.8°	76.8°	12.0	64.8°	65.8	33.4	3.9	44.0	4.4	12.7	127.6	75.3	50.8	63.8

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