Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
2019 Trek Top Fuel 9.9 SL
Previous used estimate
$2,256 - $2,321
Actual value depends on condition, size, and local demand.
Value Guide market data · 2019 Trek Top Fuel 9.9 SL
12-month projected trend
12%
Direction and magnitude, not judgment
vs. category average
5%
Drops faster than category avg
Price over time - 2019 Trek Top Fuel 9.9 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▲ 176% vs. 2019
2024$2,116 - $2,177▼ 6% vs. 2019
2023$3,655 - $3,760▲ 62% vs. 2019
2021$3,148 - $3,239▲ 40% vs. 2019
2020$3,381 - $3,479▲ 50% vs. 20192019$2,256 - $2,321Currently viewing
2018$2,235 - $2,299▼ 1% vs. 20192017$2,046 - $2,105▼ 9% vs. 2019
2016$1,992 - $2,050▼ 12% vs. 2019
2012$1,561 - $1,606▼ 31% vs. 2019
2011$1,437 - $1,478▼ 36% vs. 2019
2010$1,313 - $1,351▼ 42% vs. 2019
2009$1,153 - $1,186▼ 49% vs. 2019
2008$1,153 - $1,186▼ 49% vs. 2019
2007$1,249 - $1,285▼ 45% vs. 2019Overview
About this bike
Top Fuel 9.9 SL is Trek's fastest full suspension XC mountain bike. Everything on this bike is geared toward helping you go faster and perform better. An OCLV Mountain Carbon frame, carbon components, and super-lightweight full suspension setup make Top Fuel 9.9 SL a race-ready rocket that flies over gnarly terrain on its way to the podium. It's right for you if... At night, when you're lying in bed after a hard ride, you close your eyes and dream of carbon and the best XC parts available. Whether you're racing or training, you want to be the fastest. You want a bike that exceeds expectations in all categories—light weight, strength, speed, and efficiency. The tech you get Here's the truth: there's not much on this bike that isn't carbon. Trek's superlight OCLV Mountain Carbon frame, Bontrager Kovee Pro 30 carbon wheels with a 108-tooth Rapid Drive hub, SRAM XX1 Eagle 1x12 drivetrain, 100mm front and rear suspension with a super-light and super-plush RockShox SID SE fork. Plus, a TwistLoc dual remote suspension lockout, SRAM Level Ultimate carbon brakes, and a carbon handlebar and seatpost. The final word So. Much. Carbon. This is hands down the fastest full suspension XC mountain bike we make, trimmed with the best parts out there. A full OCLV Mountain Carbon frame, top-of-the-line suspension, and carbon components come together in Top Fuel 9.9 SL to make the fastest bike on the line. The rest is up to you. Why you'll love it 1 - This is full suspension performance at the weight of a hardtail 2 - It's the choice of the pros of Trek Factory Racing XC, and for good reason: it's the fastest XC bike Trek makes 3 - TwistLoc simultaneously locks out front and rear shocks for climbs and sprints with the simple Grip Shift-like motion 4 - Wider Kovee Pro 30 wheels provide better tire support so you can run lower pressure and get more traction
Specifications
- Subtype
- Cross Country
- Category
- Mountain
- Component Fork
- RockShox SID SE Carbon, DebonAir, Motion Control damper, TwistLoc remote lockout, tapered steerer, G2 Geometry w/51mm offset on 29ers, Boost110, 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: 15 x 110mm Rear: 12 x 148 (15.5-inch size: 12 x 142mm)
- Component Chain
- SRAM XX1 Eagle
- Component Color
- Gloss Purple Phaze/Matte Trek Black, Matte Carbon Smoke, Radioactive Orange/Trek Black, Viper Red/Trek White
- Component Frame
- OCLV Mountain Carbon main frame & stays, ABP, Full Floater, EVO link, tapered head tube, Mino Link, MicroTruss, Control Freak internal routing, Carbon Armor, PF92, Boost148 & G2 Geometry on 29ers, 100mm travel
- Component Brakes
- SRAM Level Ultimate carbon hydraulic disc
- Component Pedals
- Not included
- Component Saddle
- Bontrager Montrose Pro, carbon rails
- Component Headset
- FSA IS-2, 1-1/8-inch top, 1.5-inch bottom
- Component Cassette
- SRAM XG-1299, 10-50, 12 speed
- Component Crankset
- SRAM XX1 Eagle Dub
- Component Shifters
- SRAM XX1 Eagle, 12 speed
- Component Handlebar
- Bontrager XXX, OCLV Carbon, 31.8, zero rise
- Component Seat Post
- Bontrager XXX, OCLV Carbon, 31.6mm, zero offset
- Component Chainrings
- 34T Direct Mount
- Component Front Tire
- Bontrager XR2 Team Issue, Tubeless Ready, 120 tpi, aramid bead, 29x2.20 (15.5-inch: 27.5x2.20)
- Component Rear Shock
- Fox Factory Float DPS, 2-position remote, Kashima Coat, tuned by Trek Suspension Lab, 6.5x1.5-inch
- Component Wheel Size
- 27.5-inch, 29-inch
- Component Bottom Bracket
- SRAM DUB Press Fit, 92mm
- Component Rear Derailleur
- SRAM XX1 Eagle, Roller Bearing Clutch
- Rear Shock
- Fox Factory Float DPS, 2-position remote, Kashima Coat, tuned by Trek Suspension Lab, 6.5x1.5-inch
- Crankset
- SRAM XX1 Eagle Dub
- Pedals
- Not included
- Bottom Bracket
- SRAM DUB Press Fit, 92mm
- Chain
- SRAM XX1 Eagle
- Saddle
- Bontrager Montrose Pro, carbon rails
- Handlebar
- Bontrager XXX, OCLV Carbon, 31.8, zero rise
- Headset
- FSA IS-2, 1-1/8-inch top, 1.5-inch bottom
- Rear Derailleur
- SRAM XX1 Eagle, Roller Bearing Clutch
- Stem
- Bontrager Pro, 31.8mm, 7 degree
- Axles
- Front: 15 x 110mm Rear: 12 x 148 (15.5-inch size: 12 x 142mm)
- Brakes
- SRAM Level Ultimate carbon hydraulic disc
- Cassette
- SRAM XG-1299, 10-50, 12 speed
- Chainrings
- 34T Direct Mount
- Fork
- RockShox SID SE Carbon, DebonAir, Motion Control damper, TwistLoc remote lockout, tapered steerer, G2 Geometry w/51mm offset on 29ers, Boost110, 100mm travel
- Frame
- OCLV Mountain Carbon main frame & stays, ABP, Full Floater, EVO link, tapered head tube, Mino Link, MicroTruss, Control Freak internal routing, Carbon Armor, PF92, Boost148 & G2 Geometry on 29ers, 100mm travel
- Seat Post
- Bontrager XXX, OCLV Carbon, 31.6mm, zero offset
- Shifters
- SRAM XX1 Eagle, 12 speed
- Color
- Viper Red/Trek White
- Size
- 21.5-inch
- Wheel Size
- 29-inch
- Front Tire
- Bontrager XR2 Team Issue, Tubeless Ready, 120 tpi, aramid bead, 29x2.20 (15.5-inch: 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.