Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
2018 Trek Top Fuel 9.8 SL
Previous used estimate
$1,785 - $1,836
Actual value depends on condition, size, and local demand.
Value Guide market data · 2018 Trek Top Fuel 9.8 SL
12-month projected trend
7%
Direction and magnitude, not judgment
vs. category average
2%
Drops faster than category avg
Price over time - 2018 Trek Top Fuel 9.8 SL
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Top model years
2025$6,230 - $6,410▲ 249% vs. 2018
2024$2,116 - $2,177▲ 19% vs. 2018
2023$3,655 - $3,760▲ 105% vs. 2018
2021$3,148 - $3,239▲ 76% vs. 2018
2020$3,381 - $3,479▲ 89% vs. 2018
2019$2,256 - $2,321▲ 26% vs. 20182018$1,785 - $1,836Currently viewing
2017$2,046 - $2,105▲ 15% vs. 2018
2016$1,992 - $2,050▲ 12% vs. 2018
2012$1,561 - $1,606▼ 13% vs. 2018
2011$1,437 - $1,478▼ 19% vs. 2018
2010$1,313 - $1,351▼ 26% vs. 2018
2009$1,153 - $1,186▼ 35% vs. 2018
2008$1,153 - $1,186▼ 35% vs. 2018
2007$1,249 - $1,285▼ 30% vs. 2018Overview
About this bike
Living legend The bike that ruled the podium at the height of mountain bike racing is back to reclaim the top step. Refined and reinvigorated with new technology, Top Fuel is the fastest bike on the trail. The better-than-ever Top Fuel is the fast, versatile choice for the cross country racer, marathon rider, and the entire Trek Factory Racing World Cup team. Key features - RE:aktiv XC: the smartest, fastest, most efficient shock ever - Boost148/110: stronger wheels, more tire clearance, shorter stays - Mino Link adjustable geometry lets you fine-tune your ride - Exclusive suspension tech with ABP and Full Floater
Specifications
- Subtype
- Cross Country
- Category
- Mountain
- Component Fork
- Fox Performance 32 Float, Step Cast, FIT4 2-position damper (with new push-to-unlock remote), E2 tapered steerer, G2 Geometry w/51mm offset on 29ers, 100mm travel
- Component Size
- 15.5-inch, 17.5-inch, 18.5-inch, 19.5-inch, 21.5-inch
- Component Stem
- Bontrager Pro, 31.8mm, 7 degree
- Product Family
- Top
- Component Axles
- Front: Boost 15 x 110mm Rear: 12 x 148mm (15.5": 12 x 142mm rear)
- Component Chain
- SRAM GX Eagle
- Component Color
- Matte Anthracite, Radioactive Orange/Trek Black, Trek Black/Radioactive Yellow-Green Fade, Waterloo Blue/Radioactive Yellow
- Component Frame
- OCLV Mountain Carbon main frame, alloy stays, ABP, Full Floater, EVO link, E2 tapered head tube, Mino Link, MicroTruss, Control Freak internal routing, Carbon Armor, PF92, G2 Geometry on 29ers, 100mm travel
- Component Brakes
- SRAM Level TLM hydraulic disc
- Component Saddle
- Bontrager Montrose Elite, hollow titanium rails
- Component Headset
- FSA IS-2, 1-1/8" top, 1.5" bottom
- Component Cassette
- SRAM XG-1275, 10-50, 12 speed
- Component Crankset
- SRAM Stylo Carbon Eagle
- Component Shifters
- SRAM GX Eagle, 12 speed
- Component Handlebar
- Bontrager Race X Lite, OCLV Carbon, 31.8mm, 5mm rise
- Component Seat Post
- Bontrager Pro, 31.6mm, 5mm offset
- Component Chainrings
- 32T
- Component Front Tire
- Bontrager XR2 Team Issue, Tubeless Ready, 120 tpi, aramid bead, 29x2.20" (15.5: 27.5x2.20")
- Component Rear Shock
- Fox Performance Float, RE:aktiv XC 2-position damper (with new push-to-unlock remote), tuned by Trek Suspension Lab, 6.5"x1.5"
- Component Tape Grips
- ESI Chunky
- Component Wheel Size
- 27.5-inch, 29-inch
- Component Bottom Bracket
- PF92
- Component Rear Derailleur
- SRAM GX Eagle, Roller Bearing Clutch
- Component Front Derailleur
- Shimano SLX M7020
- Rear Shock
- Fox Performance Float, RE:aktiv XC 2-position damper (with new push-to-unlock remote), tuned by Trek Suspension Lab, 6.5"x1.5"
- Crankset
- SRAM Stylo Carbon Eagle
- Bottom Bracket
- PF92
- Chain
- SRAM GX Eagle
- Saddle
- Bontrager Montrose Elite, hollow titanium rails
- Handlebar
- Bontrager Race X Lite, OCLV Carbon, 31.8mm, 5mm rise
- Headset
- FSA IS-2, 1-1/8" top, 1.5" bottom
- Front Derailleur
- Shimano SLX M7020
- Rear Derailleur
- SRAM GX Eagle, Roller Bearing Clutch
- Stem
- Bontrager Pro, 31.8mm, 7 degree
- Axles
- Front: Boost 15 x 110mm Rear: 12 x 148mm (15.5": 12 x 142mm rear)
- Brakes
- SRAM Level TLM hydraulic disc
- Cassette
- SRAM XG-1275, 10-50, 12 speed
- Chainrings
- 32T
- Fork
- Fox Performance 32 Float, Step Cast, FIT4 2-position damper (with new push-to-unlock remote), E2 tapered steerer, G2 Geometry w/51mm offset on 29ers, 100mm travel
- Frame
- OCLV Mountain Carbon main frame, alloy stays, ABP, Full Floater, EVO link, E2 tapered head tube, Mino Link, MicroTruss, Control Freak internal routing, Carbon Armor, PF92, G2 Geometry on 29ers, 100mm travel
- Seat Post
- Bontrager Pro, 31.6mm, 5mm offset
- Shifters
- SRAM GX Eagle, 12 speed
- Tape/Grips
- ESI Chunky
- Color
- Waterloo Blue/Radioactive Yellow
- Size
- 21.5-inch
- Wheel Size
- 29-inch
- Front Tire
- Bontrager XR2 Team Issue, Tubeless Ready, 120 tpi, aramid bead, 29x2.20" (15.5: 27.5x2.20")
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.