Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
2025 Trek Fuel EX 9.8 XT Gen 6
Estimated used market value
$4,757 - $4,894
Actual value depends on condition, size, and local demand.
Value Guide market data · 2025 Trek Fuel EX 9.8 XT Gen 6
12-month projected trend
22%
Direction and magnitude, not judgment
vs. category average
10%
Drops faster than category avg
Price over time - 2025 Trek Fuel EX 9.8 XT Gen 6
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
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Compare Fuel EX 9.8 XT Gen 6 models
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Overview
About this bike
Fuel EX 9.8 XT is a playful and capable trail bike that blends together cherry-picked components with a light full carbon frame for the best balance of price and performance. Decked out with 150mm of front and 140mm rear FOX Performance suspension package, you'll be ready to float through the chunder, while carbon wheels keep tracking precise through rowdy terrain. A Shimano XT drivetrain tops things off for precise shifting for power on descents and relief on long climbs. WHY YOU'LL LOVE IT - Fuel EX Gen 6 gives you 140/150mm of travel with extra adjustability features and more stable handling, plus a more robust frame with internal storage - We expanded our size range to ensure a better fit for all riders and use the best-fitting wheels for each frame size: XS frames get 27.5" wheels, S frames get to choose between 27.5" or 29", and sizes M and up get 29" wheels - It's ready to rip with lightweight carbon wheels that easily tackle rough terrain and hold their line when things get rowdy - In-frame storage makes it easy to bring along all of your essentials while keeping your setup streamlined and sleek - With the adjustable angle headset (angled cups sold separately) and Mino Link, you can choose from six different geometry configurations IT'S RIGHT FOR YOU IF... You're chasing long flowy and technical descents, and want to pedal back to the top for more, lap after lap. You want the vibration-damping benefits of a carbon frame and carbon wheels, plus upgraded suspension that smooths out the rough and rowdy. THE TECH YOU GET A light and stiff carbon frame with a full FOX Performance suspension package that smooths out rowdy rock gardens and root lattices. Plus, carbon wheels that keep your setup light and tracking precise, and the clean shifting and brake modulation of a Shimano XT drivetrain. Finally, you'll find adjustable geometry and in-frame storage for keeping your setup dialed just for you. THE FINAL WORD Fuel EX 9.8 is the culmination of years of trail riding and progression, with longer front-end geometry for tackling steeper and hairier descents, and a steeper seat tube to keep you perched on climbs. It's equipped with the cherry-picked components you want, like upgraded suspension, carbon wheels, and a Shimano XT drivetrain.
Specifications
- Subtype
- Trail / Enduro
- Category
- Mountain
- Component Fork
- Fox Performance 36, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 150mm travel
- Component Hubs
- Front: Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle Rear: Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, Shimano MicroSpline freehub, Boost148, 12mm thru axle
- Component Rims
- Bontrager Line Elite 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, Shimano RT86, 6-bolt, 180mm Shimano RT86, 6-bolt, 203mm
- Component Size
- X-Small, Small, Medium, Medium/Large, Large, X-Large
- Product Family
- Fuel
- Component Chain
- Shimano Ultegra/XT M8100, 12 speed
- Component Color
- Lava, Dark Aquatic, Deep Smoke, Deep Smoke/Purple Phaze, Lavender Haze
- Component Frame
- OCLV Mountain Carbon, internal storage, angle-adjust headset, Mino Link adjustable geometry, adjustable leverage rate, guided internal routing, magnesium rocker link, 34.9mm seat tube, ISCG 05, 55mm chainline, BSA 73, downtube guard, shuttle guard, ABP, UDH, Boost148, 140mm travel
- Component Brakes
- Shimano XT M8120 4-piston hydraulic disc // Shimano XT M8120 4-piston hydraulic disc, Shimano XT M8120 4-piston hydraulic disc
- Component Pedals
- Sold Separately
- Component Rotors
- Shimano RT86, 6-bolt, 180mm
- Component Saddle
- Bontrager Arvada, austenite rails, 138mm width
- Component Headset
- Integrated cartridge bearing, 1-1/8'' top, 1.5'' bottom, angle adjust cup compatible
- Component Crankset
- Shimano XT M8120, 30T, 55mm chainline, 170mm length
- Component Seatpost
- Bontrager Line Elite Dropper, 100mm travel, MaxFlow, internal routing, 34.9mm, 345mm length, Bontrager Line Elite Dropper, 100mm travel, MaxFlow, internal routing, 34.9mm
- Component Shifters
- Shimano XT M8100, 12 speed
- Component Handlebar
- Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 27.5mm handlebar rise, 820mm width, 0 degree stem rise, 35mm stem length, Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 27.5mm handlebar rise, 820mm width, 0 degree stem rise
- Component Rear Tire
- Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 60 tpi, 29x2.50''
- Component Wheel Set
- Front: Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle XS, S: Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12mm thru axle S - XL: Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru axle, Front: Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 29'' Rear: Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru axle, 29''
- Component Front Tire
- Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 60 tpi, 29x2.50''
- Component Rear Shock
- Fox Performance Float X, 2-position damper, 185mm x 55mm
- Component Tape Grips
- Bontrager XR Trail Elite, nylon lock-on
- Component Wheel Size
- 29-inch, 27.5-inch
- Component Bottom Bracket
- Shimano BB-MT501 BSA
- Component Rear Derailleur
- Shimano XT M8100, long cage
- Component Accessories Extras
- Bontrager BITS Internal Frame Storage Bag
- Component Cassette Freewheel
- Shimano XT M8100, 10-51, 12 speed
- Rear Shock
- Fox Performance Float X, 2-position damper, 185mm x 55mm
- Hubs
- Front: Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle Rear: Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, Shimano MicroSpline freehub, Boost148, 12mm thru axle
- Rims
- Shimano RT86, 6-bolt, 180mm Shimano RT86, 6-bolt, 203mm
- Crankset
- Shimano XT M8120, 30T, 55mm chainline, 170mm length
- Pedals
- Sold Separately
- Bottom Bracket
- Shimano BB-MT501 BSA
- Chain
- Shimano Ultegra/XT M8100, 12 speed
- Seatpost
- Bontrager Line Elite Dropper, 100mm travel, MaxFlow, internal routing, 34.9mm
- Saddle
- Bontrager Arvada, austenite rails, 138mm width
- Handlebar
- Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 27.5mm handlebar rise, 820mm width, 0 degree stem rise
- Headset
- Integrated cartridge bearing, 1-1/8'' top, 1.5'' bottom, angle adjust cup compatible
- Rear Derailleur
- Shimano XT M8100, long cage
- Rear Tire
- Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 60 tpi, 29x2.50''
- Accessories & Extras
- Bontrager BITS Internal Frame Storage Bag
- Brakes
- Shimano XT M8120 4-piston hydraulic disc
- Fork
- Fox Performance 36, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 150mm travel
- Frame
- OCLV Mountain Carbon, internal storage, angle-adjust headset, Mino Link adjustable geometry, adjustable leverage rate, guided internal routing, magnesium rocker link, 34.9mm seat tube, ISCG 05, 55mm chainline, BSA 73, downtube guard, shuttle guard, ABP, UDH, Boost148, 140mm travel
- Shifters
- Shimano XT M8100, 12 speed
- Tape/Grips
- Bontrager XR Trail Elite, nylon lock-on
- Color
- Lavender Haze
- Size
- X-Large
- Wheel Size
- 27.5-inch
- Cassette/Freewheel
- Shimano XT M8100, 10-51, 12 speed
- Rotors
- Shimano RT86, 6-bolt, 180mm
- Wheel Set
- Front: Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 29'' Rear: Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru axle, 29''
- Front Tire
- Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 60 tpi, 29x2.50''
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Suspension service
Confirm fork and rear shock service intervals and check pivot bearings for play.