Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
2020 Trek Top Fuel 9.9 AXS
Previous used estimate
$3,381 - $3,479
Actual value depends on condition, size, and local demand.
Value Guide market data · 2020 Trek Top Fuel 9.9 AXS
12-month projected trend
8%
Direction and magnitude, not judgment
vs. category average
8%
Drops faster than category avg
Price over time - 2020 Trek Top Fuel 9.9 AXS
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▲ 84% vs. 2020
2024$2,116 - $2,177▼ 37% vs. 2020
2023$3,655 - $3,760▲ 8% vs. 2020
2021$3,148 - $3,239▼ 7% vs. 20202020$3,381 - $3,479Currently viewing
2019$2,256 - $2,321▼ 33% vs. 2020
2018$2,235 - $2,299▼ 34% vs. 20202017$2,046 - $2,105▼ 39% vs. 2020
2016$1,992 - $2,050▼ 41% vs. 2020
2012$1,561 - $1,606▼ 54% vs. 2020
2011$1,437 - $1,478▼ 58% vs. 2020
2010$1,313 - $1,351▼ 61% vs. 2020
2009$1,153 - $1,186▼ 66% vs. 2020
2008$1,153 - $1,186▼ 66% vs. 2020
2007$1,249 - $1,285▼ 63% vs. 2020Overview
About this bike
Top Fuel 9.9 XX1 AXS is our top-of-the-line full suspension carbon mountain bike for endurance racers and multi-discipline riders. This down-country rig is built with the latest in fully wireless components like the SRAM XX1 Eagle AXS drivetrain and RockShox Reverb AXS dropper. It's also spec'd with high-end RockShox suspension and lots of carbon—including the wheels, bars, and shift levers. You'll fly through singletrack and rip descents on this bike, but it really shines when pushed to its full potential during grueling endurance races. It's right for you if... You've set your sights on endurance racing, and want every lightweight and performance advantage. You're looking for an efficient yet trail-capable rig that's fast on flats, soaks up rough terrain, and has the latest in fully wireless electronic components. The tech you get A full OCLV Mountain Carbon frame, top-of-the-line 120mm RockShox Pike Ultimate fork with plush DebonAir spring and Charger 2 RC2 damper that gives you more adjustment and control. 115mm of rear travel with a RockShox Deluxe Ultimate shock, and a fully wireless 1x12 SRAM XX1 Eagle AXS electronic drivetrain. Plus, wide carbon Bontrager Kovee Pro 30 wheels with a 108-tooth Rapid Drive hub for instant engagement, TwistLoc dual remote suspension lockout, a wireless RockShox Reverb AXS dropper, Bontrager Kovee XXX OCLV Carbon handlebars, and SRAM Level Ultimate brakes with carbon levers. The final word The Top Fuel 9.9 XX1 AXS is built for speed and capability on any terrain, but its efficient, short-travel design excels in endurance events. An OCLV Mountain Carbon frame, fully wireless drivetrain and dropper, and top-of-the-line suspension come together for a nimble and insanely fun ride at any distance. Why you'll love it - The SRAM XX1 Eagle AXS drivetrain is smart, smooth, and completely wireless - It’s the ultimate endurance race bike—light, capable, and trimmed with high-performance components - TwistLoc simultaneously locks out front and rear shocks for climbs and sprints with the simple Grip Shift-like motion - This short-travel trail bike gives you a suspension setup that’s capable in several MTB disciplines, and especially suited to endurance events - Make it yours: it's fully customizable through Project One
Specifications
- Subtype
- Cross Country
- Category
- Mountain
- Component Fork
- RockShox Pike Ultimate, DebonAir spring, Charger 2 RC2 damper, tapered steerer, 42mm offset, Boost110, 15mm Maxle Stealth, 120mm travel
- Component Size
- Small, Medium, Medium/Large, Large, X-Large
- Component Stem
- Bontrager Kovee Pro, 35mm, Knock Block, Blendr compatible, 13 degree
- Product Family
- Top
- Component Axles
- Front: Boost 110 Rear: Boost 148
- Component Chain
- SRAM XX1 Eagle, 12 speed
- Component Color
- Matte Carbon/Gloss Trek Black
- Component Frame
- OCLV Mountain Carbon main frame & stays, tapered head tube, Knock Block, Control Freak internal routing, Carbon Armor, magnesium rocker link, Mino Link, ABP, Boost148, 115mm travel
- Component Brakes
- SRAM Level Ultimate hydraulic disc, carbon levers, 160mm rotors
- Component Saddle
- Bontrager Montrose Elite, titanium rails
- Component Headset
- Knock Block Integrated, sealed cartridge bearing, 1-1/8" top, 1.5" bottom
- Component Cassette
- SRAM XG-1299 Eagle, 10-50, 12 speed
- Component Crankset
- SRAM XX1 Eagle AXS Carbon, DUB, Boost
- Component Shifters
- SRAM Eagle AXS, wireless, 12 speed
- Component Handlebar
- Bontrager Line Pro, OCLV Carbon, 35mm, 15mm rise
- Component Seat Post
- RockShox Reverb AXS, wireless, 31.6mm
- Component Chainrings
- 32T alloy
- Component Front Tire
- Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120tpi, 29x2.40"
- Component Rear Shock
- RockShox Deluxe Ultimate, TwistLoc remote lockout
- Component Tape Grips
- SRAM TwistLoc
- Component Bottom Bracket
- SRAM DUB, 92mm, PressFit
- Component Rear Derailleur
- SRAM XX1 Eagle AXS
- Rear Shock
- RockShox Deluxe Ultimate, TwistLoc remote lockout
- Crankset
- SRAM XX1 Eagle AXS Carbon, DUB, Boost
- Bottom Bracket
- SRAM DUB, 92mm, PressFit
- Chain
- SRAM XX1 Eagle, 12 speed
- Saddle
- Bontrager Montrose Elite, titanium rails
- Handlebar
- Bontrager Line Pro, OCLV Carbon, 35mm, 15mm rise
- Headset
- Knock Block Integrated, sealed cartridge bearing, 1-1/8" top, 1.5" bottom
- Rear Derailleur
- SRAM XX1 Eagle AXS
- Stem
- Bontrager Kovee Pro, 35mm, Knock Block, Blendr compatible, 13 degree
- Axles
- Front: Boost 110 Rear: Boost 148
- Brakes
- SRAM Level Ultimate hydraulic disc, carbon levers, 160mm rotors
- Cassette
- SRAM XG-1299 Eagle, 10-50, 12 speed
- Chainrings
- 32T alloy
- Fork
- RockShox Pike Ultimate, DebonAir spring, Charger 2 RC2 damper, tapered steerer, 42mm offset, Boost110, 15mm Maxle Stealth, 120mm travel
- Frame
- OCLV Mountain Carbon main frame & stays, tapered head tube, Knock Block, Control Freak internal routing, Carbon Armor, magnesium rocker link, Mino Link, ABP, Boost148, 115mm travel
- Seat Post
- RockShox Reverb AXS, wireless, 31.6mm
- Shifters
- SRAM Eagle AXS, wireless, 12 speed
- Tape/Grips
- SRAM TwistLoc
- Color
- Matte Carbon/Gloss Trek Black
- Size
- X-Large
- Front Tire
- Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120tpi, 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.