Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
2018 Trek Fuel EX 9.8 29
Previous used estimate
$1,716 - $1,765
Actual value depends on condition, size, and local demand.
Value Guide market data · 2018 Trek Fuel EX 9.8 29
12-month projected trend
6%
Direction and magnitude, not judgment
vs. category average
3%
Drops faster than category avg
Price over time - 2018 Trek Fuel EX 9.8 29
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Fuel model years
Overview
About this bike
Key features - Capable and stiff 130mm frame is 29" and 27.5+ compatible - Boost148/110: stronger wheels, more tire clearance, shorter stays - Exclusive suspension tech with ABP, Full Floater, and RE:aktiv - Straight Shot stiffness, Knock Block frame defense
Specifications
- Subtype
- Trail / Enduro
- Category
- Mountain
- Component Fork
- Fox Performance 34 Float, GRIP 3-position damper, E2 tapered steerer, G2 Geometry w/51mm offset, Boost110, 130mm travel
- Component Hubs
- Front: Formula Alloy DC511 Rear: Bontrager sealed bearing alloy axle
- Component Size
- 15.5-inch, 17.5-inch, 18.5-inch, 19.5-inch, 21.5-inch
- Component Stem
- Bontrager Line Pro, Knock Block, 35mm clamp, 0 degree, 60mm length
- Product Family
- Fuel
- Component Axles
- Front: 15 x 110mm Rear: 12 x 148mm
- Component Chain
- SRAM GX Eagle
- Component Color
- Matte Gunmetal/Gloss Black, Radioactive Orange/Trek Black, Radioactive Purple/Radioactive Yellow-Orange Fade, Trek Black/Green Light
- Component Frame
- OCLV Mountain Carbon main frame & seatstay, alloy chainstay, ABP, Boost148, Knock Block steerer stop, Full Floater, EVO link, E2 tapered head tube, Mino Link, Control Freak internal routing, Carbon Armor, PF92, ISCG 05, G2 Geometry, 130mm travel
- Component Brakes
- SRAM Guide RS hydraulic disc
- Component Saddle
- Bontrager Evoke 3, titanium rails
- Component Headset
- Knock Block Integrated, sealed cartridge bearing, 1-1/8" top, 1.5"bottom
- Component Cassette
- SRAM PG-1130, 11-42, 11 speed
- Component Crankset
- SRAM Descendant 7k Eagle, Direct Mount X-Sync
- Component Shifters
- SRAM GX Eagle, 12 speed
- Component Handlebar
- Bontrager Line Pro, OCLV Carbon, 35mm, 15mm rise, 750mm width
- Component Seat Post
- Bontrager Drop Line, internal routing, 31.6mm (15.5: 100mm / 17.5 & 18.5: 125mm / 19.5 & 21.5: 150mm)
- Component Chainrings
- 32T
- Component Front Tire
- Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, 120tpi, aramid bead, 29x2.40"
- Component Rear Shock
- Fox Performance Float EVOL, RE:aktiv 3-position damper, tuned by Trek Suspension Lab, 210x52.5mm
- Component Tape Grips
- Bontrager Race Lite, lock-on
- Component Bottom Bracket
- PF92
- Component Rear Derailleur
- SRAM GX Eagle, Roller Bearing Clutch
- Component Front Derailleur
- Shimano SLX M7020
- Rear Shock
- Fox Performance Float EVOL, RE:aktiv 3-position damper, tuned by Trek Suspension Lab, 210x52.5mm
- Hubs
- Front: Formula Alloy DC511 Rear: Bontrager sealed bearing alloy axle
- Crankset
- SRAM Descendant 7k Eagle, Direct Mount X-Sync
- Bottom Bracket
- PF92
- Chain
- SRAM GX Eagle
- Saddle
- Bontrager Evoke 3, titanium rails
- Handlebar
- Bontrager Line Pro, OCLV Carbon, 35mm, 15mm rise, 750mm width
- Headset
- Knock Block Integrated, sealed cartridge bearing, 1-1/8" top, 1.5"bottom
- Front Derailleur
- Shimano SLX M7020
- Rear Derailleur
- SRAM GX Eagle, Roller Bearing Clutch
- Stem
- Bontrager Line Pro, Knock Block, 35mm clamp, 0 degree, 60mm length
- Axles
- Front: 15 x 110mm Rear: 12 x 148mm
- Brakes
- SRAM Guide RS hydraulic disc
- Cassette
- SRAM PG-1130, 11-42, 11 speed
- Chainrings
- 32T
- Fork
- Fox Performance 34 Float, GRIP 3-position damper, E2 tapered steerer, G2 Geometry w/51mm offset, Boost110, 130mm travel
- Frame
- OCLV Mountain Carbon main frame & seatstay, alloy chainstay, ABP, Boost148, Knock Block steerer stop, Full Floater, EVO link, E2 tapered head tube, Mino Link, Control Freak internal routing, Carbon Armor, PF92, ISCG 05, G2 Geometry, 130mm travel
- Seat Post
- Bontrager Drop Line, internal routing, 31.6mm (15.5: 100mm / 17.5 & 18.5: 125mm / 19.5 & 21.5: 150mm)
- Shifters
- SRAM GX Eagle, 12 speed
- Tape/Grips
- Bontrager Race Lite, lock-on
- Color
- Trek Black/Green Light
- Size
- 21.5-inch
- Front Tire
- Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, 120tpi, aramid bead, 29x2.40"
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.