Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
2023 Trek Top Fuel 9.9 XX1 AXS
Previous used estimate
$3,560 - $3,663
Actual value depends on condition, size, and local demand.
Value Guide market data · 2023 Trek Top Fuel 9.9 XX1 AXS
12-month projected trend
13%
Direction and magnitude, not judgment
vs. category average
24%
Drops faster than category avg
Price over time - 2023 Trek Top Fuel 9.9 XX1 AXS
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Top Fuel model years
2026$7,399 - $7,613▲ 108% vs. 2023
2025$7,259 - $7,468▲ 104% vs. 2023
2024$5,746 - $5,912▲ 61% vs. 20232023$3,560 - $3,663Currently viewing
2022$3,739 - $3,847▲ 5% vs. 2023
2021$3,063 - $3,151▼ 14% vs. 2023
2020$3,371 - $3,468▼ 5% vs. 2023
2019$1,149 - $1,182▼ 68% vs. 2023
2018$1,234 - $1,270▼ 65% vs. 2023Overview
About this bike
Top Fuel 9.9 XX1 AXS pulls out all the stops. This full suspension carbon mountain bike is built with the latest in fully wireless components like a 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, shifters, and brake levers.
Specifications
- Subtype
- Cross Country
- Category
- Mountain
- Component Fork
- RockShox Pike Ultimate, DebonAir spring, Charger 3 RC2 damper, 44mm offset, Boost110, Maxle Stealth, 130mm travel
- Component Size
- Small, Medium, Medium/Large, Large, X-Large
- Product Family
- Top Fuel
- Component Chain
- SRAM XX1 Eagle, 12 speed
- Component Color
- Matte Raw Carbon, Pennyflake, Satin Baja Yellow
- Component Frame
- OCLV Mountain Carbon, internal storage, tapered head tube, Knock Block 2.0, internal guided routing, downtube guard, magnesium rocker link, Mino Link, ABP, Boost148, 120mm travel
- Component Brakes
- SRAM G2 Ultimate hydraulic disc, carbon levers // SRAM G2 Ultimate hydraulic disc, carbon levers
- Component Rotors
- SRAM HS2, 6-bolt, 160mm // SRAM HS2, 6-bolt, 180mm
- Component Saddle
- Bontrager Arvada, austenite rails, 138mm width
- Component Headset
- Knock Block 2.0 Integrated, 72-degree radius (includes infinite-radius chip), sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom
- Component Crankset
- SRAM XX1 Eagle, DUB, 30T alloy ring, 55mm chainline, 170mm length
- Component Seatpost
- RockShox Reverb AXS, 170mm travel, wireless, 34.9mm, 480mm length
- Component Shifters
- SRAM Eagle AXS, wireless, 12 speed // SRAM Eagle AXS, wireless, 12 speed
- Component Handlebar
- Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 27.5mm handlebar rise, 820mm width, 0 degree stem rise, 45mm stem length
- Component Rear Tire
- Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120tpi, 29x2.40''
- Component Front Tire
- Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120tpi, 29x2.40''
- Component Rear Shock
- RockShox Deluxe Ultimate RCT, 185mm x 50mm
- Component Wheel Size
- 29-inch
- Component Bottom Bracket
- SRAM DUB MTB Wide, 73mm, BSA threaded
- Component Rear Derailleur
- SRAM XX1 Eagle AXS
- Component Cassette Freewheel
- SRAM Eagle XG-1299, 10-52, 12 speed
- Rear Shock
- RockShox Deluxe Ultimate RCT, 185mm x 50mm
- Crankset
- SRAM XX1 Eagle, DUB, 30T alloy ring, 55mm chainline, 170mm length
- Bottom Bracket
- SRAM DUB MTB Wide, 73mm, BSA threaded
- Chain
- SRAM XX1 Eagle, 12 speed
- Seatpost
- RockShox Reverb AXS, 170mm travel, wireless, 34.9mm, 480mm length
- 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, 45mm stem length
- Headset
- Knock Block 2.0 Integrated, 72-degree radius (includes infinite-radius chip), sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom
- Rear Derailleur
- SRAM XX1 Eagle AXS
- Rear Tire
- Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120tpi, 29x2.40''
- Brakes
- SRAM G2 Ultimate hydraulic disc, carbon levers // SRAM G2 Ultimate hydraulic disc, carbon levers
- Fork
- RockShox Pike Ultimate, DebonAir spring, Charger 3 RC2 damper, 44mm offset, Boost110, Maxle Stealth, 130mm travel
- Frame
- OCLV Mountain Carbon, internal storage, tapered head tube, Knock Block 2.0, internal guided routing, downtube guard, magnesium rocker link, Mino Link, ABP, Boost148, 120mm travel
- Shifters
- SRAM Eagle AXS, wireless, 12 speed // SRAM Eagle AXS, wireless, 12 speed
- Color
- Satin Baja Yellow
- Size
- X-Large
- Wheel Size
- 29-inch
- Cassette/Freewheel
- SRAM Eagle XG-1299, 10-52, 12 speed
- Rotors
- SRAM HS2, 6-bolt, 160mm // SRAM HS2, 6-bolt, 180mm
- Front Tire
- Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, 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.