Trek Fuel+ EX 9.8. Light assist. Light years ahead.
More laps. Bigger rides. Same versatile trail feel. The Trek Fuel + EX 9.8 is a mid-assist e-MTB that brings power to the pedal without sacrificing the soul of the ride. With three build options and ultra-adjustable geometry, it’s easy to fine-tune your set-up for tech, flowy loam or the deepest steeps. Just choose your adventure and ride without limits.
Engineered Chassis
The Fuel + EX 9.8 sets a new benchmark for riders who demand uncompromising performance from their enduro e-MTB. Built around a lightweight yet robust full-suspension chassis, it strikes the perfect balance of precision handling, climbing efficiency and downhill capability.
Effortless Power, Extended Range
Powered by the TQ HPR60 drive system, this e-MTB delivers 60 Nm of torque with an incredibly smooth and natural response — assistance that feels like an extension of your own pedalling. The 580 Wh battery ensures the range to push further, climb higher, and ride longer. With both motor and battery positioned low in the frame, the bike maintains a stable centre of gravity, staying composed through technical rock gardens and agile in fast corners. It’s the authentic mountain bike experience, elevated for bigger adventures.
Design That Delivers
The aesthetic is just as refined as the ride. Clean cable routing, low-profile battery housing and a sleek integration of electronics give the Fuel + EX 9.8 a purposeful, premium look that matches its performance. This isn’t an e-bike that hides behind its motor — it’s one that embraces technology while keeping the focus firmly on the ride.
Geometry

Frame size number | 15.5" | 17.5" | 19.5" | 21.5" | 23" |
---|---|---|---|---|---|
Frame size letter | S | M | L | XL | XXL |
Wheel size | 29"/27.5" | 29" | 29" | 29" | 29" |
A — Seat tube | 37.0 | 40.0 | 42.0 | 45.5 | 47.5 |
B — Seat tube angle | 72.7° | 72.6° | 72.6° | 72.6° | 72.6° |
Effective seat tube angle | 78.2° | 77.8° | 77.3° | 76.9° | 76.4° |
C — Head tube length | 11.0 | 11.0 | 12.5 | 14.0 | 15.5 |
D — Head angle | 64.6° | 64.5° | 64.5° | 64.5° | 64.5° |
E — Effective top tube | 55.9 | 58.9 | 61.9 | 65.1 | 68.0 |
F — Bottom bracket height | 33.9 | 33.9 | 33.9 | 33.9 | 33.9 |
G — Bottom bracket drop | 3.4 | 3.5 | 3.5 | 3.5 | 3.5 |
H — Chainstay length | 44.1 | 44.4 | 44.4 | 44.7 | 45.2 |
I — Offset | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 |
J — Trail | 12.9 | 12.9 | 12.9 | 12.9 | 12.9 |
K — Wheelbase | 120.0 | 123.2 | 125.8 | 129.8 | 133.0 |
L — Standover | 75.4 | 74.7 | 75.0 | 75.5 | 76.4 |
M — Frame reach | 43.1 | 46.0 | 48.5 | 51.0 | 53.0 |
N — Frame stack | 62.4 | 62.4 | 63.8 | 65.1 | 66.5 |
FAQs: Trek Fuel+ EX 9.8
Basics
What size bike do I need?
What is Frame Protection and is it worth fitting it to the Fuel+?
What is tubeless setup and can the Fuel+ be set up tubeless?
What equipment & info will the bike arrive with?
Is it possible to see the Fuel+ in your showroom & is it possible to have a test ride or demo it?
What type of bike is the Fuel+ and what is it designed for?
What type of terrain is the Fuel+ ideally suited towards?
Can the Trek Fuel+ EX 9.8 get wet and muddy?
How should you clean & maintain the Trek Fuel+ EX 9.8?
Can you tell me about the Trek brand?
I'm new to riding, what essential bits of kit do I need to get going?
Where can I ride the Trek Fuel+ EX 9.8?
Technical
Where can I find all of the major components that come on the bike?
Can you fit a water bottle on the Trek Fuel+ EX 9.8?
What warranty comes on the Trek Fuel+ EX 9.8?
Does the Trek Fuel+ EX 9.8 come with pedals?
Can I get hold of spare / replacement parts easily for the Trek Fuel+ EX 9.8?
Are electric bikes legal? How fast can the Trek Fuel+ EX 9.8 go?
Do I need a license to ride the Trek Fuel+ EX 9.8 in the UK?
Can I add upgrades to the bike?
Electric / Battery
How should I store the bike?
What is the battery lifespan on a Trek Fuel+ EX 9.8?
Are Lithium-Ion batteries safe?
Is the internal battery removable on the Trek Fuel+ EX 9.8?
What is the expected range of the battery on the Trek Fuel+ EX 9.8?
What is a range extender and can you add one to the Trek Fuel+ EX 9.8?
Does the bike arrive fully charged and ready to go?
How to charge the battery on the Trek Fuel+ EX 9.8?
How long does it take to charge the battery?
How is the motor protected ?
Purchasing
Why choose MTB Monster?
Do you offer 0% finance for the Trek Fuel+ EX 9.8?
Do you accept Cycle To Work vouchers? How does it work?
I'm still sorting my payment method, can I reserve a bike?
The bike is not yet in stock, can I pre-order one?
How will the bike be delivered & what are the setup requirements?
What are the delivery options?
Can I collect the bike in the store?
I still have more questions, can I speak to someone?
- FRAME:
- OCLV Mountain Carbon, removable battery, angle-adjust headset, adjustable leverage rate, guided internal routing, interchangeable alloy rocker links, interchangeable lower shock mount, downtube guard, shuttle guard, ABP, UDH, Boost148, adaptable trav
- FRAME MATERIAL:
- Carbon
- FORK BRAND:
- Fox
- FORK:
- Fox Factory 36, Float EVOL air spring, GRIP X2 damper, 44 mm offset, Boost 110, 15 mm Kabolt X axle, 150 mm travel
- FORK TRAVEL:
- 150 mm
- REAR SHOCK:
- Fox Factory Float X, 205 mm x 60 mm
- MOTOR:
- TQ
- MOTOR CONTROLLER:
- TQ
- DISPLAY:
- TQ LED Display with Bluetooth & ANT+ Connectivity
- DRIVE UNIT:
- TQ HPR (60 Nm)
- BATTERY:
- 580 Wh Battery
- RANGE EXTENDER:
- Available for Purchase
- CHARGER:
- TQ 4A charger
- WHEEL SIZE:
- 29
- WHEELS:
- Front: Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru-axle / Rear: Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12 mm thru-axle
- TYRES:
- Maxxis Minion DHF, tubeless-ready, 3C, EXO+ casing, MAXXGRIP, folding bead, 29x2.5''
- DROPPER SEATPOST:
- Yes
- SEATPOST:
- Bontrager Line Dropper (MaxFlow, internal, 34.9 mm): S – 150/410 mm; M – 170/450 mm; L/XL/XXL – 200/515 mm.
- SADDLE:
- Verse Short Comp, steel rails, 145 mm width
- CRANKSET:
- E*thirteen E*spec Plus, 160 mm length
- STEM:
- Bontrager Elite, 35 mm, 0-degree, 45 mm length
- GRIPS:
- Trek Line Elite, lock-on
- SHIFTERS:
- Shimano XT M8100, 12-speed
- BRAKE BRAND:
- Shimano
- HYDRAULIC BRAKES:
- Yes
- BRAKES:
- Shimano XT M8200 4-piston hydraulic disc
- REAR DERAILLEUR:
- Shimano XT M8100, long cage
- CHAIN:
- Shimano Ultegra/XT M8100, 12-speed
- NUMBER OF GEARS:
- 12 Speed
- PEDALS:
- Available for Purchase
- FRONT MUDGUARD:
- MTB Monster Mudguard
- EXTRAS:
- Bontrager TLR sealant, 180 ml/6 oz
- TYPE OF BIKE:
- Trail
- DESIGNED FOR:
- Exploring new trails or going on longer rides where you encounter varied terrain. More relaxed geometry than a Cross Country bike and an excellent balance of climbing ability and downhill capability making it a great all-rounder
- IDEAL TERRAIN:
- Singletrack trails with some technical descents. Up to and including red routes at trail centres.
- PLEASE NOTE:
- Trek 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, colours, materials and pricing.