Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
2024 Trek Top Fuel 9.9 XX AXS
Previous used estimate
$5,746 - $5,912
Actual value depends on condition, size, and local demand.
Value Guide market data · 2024 Trek Top Fuel 9.9 XX AXS
12-month projected trend
15%
Direction and magnitude, not judgment
vs. category average
20%
Drops faster than category avg
Price over time - 2024 Trek Top Fuel 9.9 XX 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▲ 29% vs. 2024
2025$7,259 - $7,468▲ 26% vs. 20242024$5,746 - $5,912Currently viewing
2023$3,560 - $3,663▼ 38% vs. 2024
2022$3,739 - $3,847▼ 35% vs. 2024
2021$3,063 - $3,151▼ 47% vs. 2024
2020$3,371 - $3,468▼ 41% vs. 2024
2019$1,149 - $1,182▼ 80% vs. 2024
2018$1,234 - $1,270▼ 79% vs. 2024Overview
About this bike
Top Fuel 9.9 is a full suspension carbon mountain bike for riders who don't settle. Not for parts nor for one style of riding. It combines a high-end component package with a low-weight carbon frame for one unbelievably fun rig that's fast on flow and fun to ride on techy singletrack.
Specifications
- Subtype
- Cross Country
- Category
- Mountain
- Component Bag
- Trek NIP Reusable Dry Bag, roll top with buckle, waterproof, 50 cu in (0.8L), 45cm (l) x 16cm (w) x 8cm (h), black with white Trek logo
- Component Nut
- Bontrager Stem D-nut for XXX stems and RSL integrated bar/stems, Only available in a kit with matching M5 fasteners
- Component Fork
- RockShox Pike Ultimate, DebonAir spring, Charger 3 RC2 damper, 44mm offset, Boost110, Maxle Stealth, 130mm travel, SRAM part number 00.4020.646.027
- Component Pump
- Bontrager Suspension Shock Pump Black
- Component Tire
- Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120tpi, 29x2.40'', Black/Tan
- Product Family
- Top Fuel
- Component Armor
- Trek Armor Full Suspension Seatstay Brake Hose Rub Protector, clear adhesive paint rub guard
- Component Brake
- SRAM Level Ultimate 4-piston hydraulic disc, front 900mm hose length, SRAM part number 92.5020.700.100
- Component Chain
- SRAM XX Eagle, T-Type, 12 speed, 116 links, SRAM part number 00.2518.056.004
- Component Crank
- SRAM XX Eagle, DUB, 30T, T-Type, 55mm chainline, 170mm length, 2-guard, SRAM part number 00.6118.623.037
- Component Decal
- Stick-On Trek Shield Headtube Badge, Black
- Component Shock
- Rock Shox Rear Shock Deluxe Ultimate RCT, 185mm x 50mm, 54mm Standard Trunnion Mount Upper Width, 30mm x 8mm Pin Mount Lower Width, SRAM Part Number 00.4118.346.105
- Component Valve
- Bontrager TLR Valve, 50mm, Black
- Component Saddle
- Bontrager Saddle Arvada Austenite Rails Medium Black
- Component Battery
- SRAM eTap Battery Pack w/ Charger, SRAM PN 00.3018.201.001
- Component Shifter
- SRAM AXS Pod Ultimate Right Bridge MMX, SRAM Part number 00.3018.308.001
- Component Cassette
- SRAM Eagle XS-1299, T-Type, 10-52, 12 speed, 00.2418.122.000
- Component Fastener
- Trek Waterbottle Bolt, M5x16.5mm, Alloy, Black
- Component Seatpost
- Rock Shox Dropper Seatpost Reverb AXS 34.9mm Diameter 100mm Travel, SRAM Part Number 00.6818.039.008
- Component Stem Part
- Bontrager Stem Part for RSL Integrated handlebar/stem shim for Knock Block headsets
- Component Rear Wheel
- Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, SRAM XD driver, Boost148, 12mm thru axle
- Component Brake Rotor
- SRAM disc brake rotor, HS2 rounded, 160mm, 6-bolt, SRAM part number 00.5018.174.000
- Component Front Wheel
- Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle
- Component Seat Collar
- Bontrager Seat Collar 39.7mm For MTBs with 34.9mm Seatposts
- Component Headset Part
- Bontrager Headset Top Cap for Knock Block Black
- Component Bottom Bracket
- SRAM External Bottom Bracket, DUB BSA 73mm for MTB Wide, Use SRAM DUB Outer Spacers for proper configuration, SRAM part number 00.6418.010.013
- Component Rear Derailleur
- SRAM XX SL Eagle AXS, T-Type, SRAM part number 00.7518.147.000
- Component Cable Management
- Trek Cable Management, Top Fuel 2022 BB cable exit guide, routes derailleur housing and rear brake lines to the chainstay
- Component Integrated Bar Stem
- Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 27.5mm handlebar rise, 820mm width, 0 degree stem rise, 35mm length
- Bottom Bracket
- SRAM External Bottom Bracket, DUB BSA 73mm for MTB Wide, Use SRAM DUB Outer Spacers for proper configuration, SRAM part number 00.6418.010.013
- Chain
- SRAM XX Eagle, T-Type, 12 speed, 116 links, SRAM part number 00.2518.056.004
- Seatpost
- Rock Shox Dropper Seatpost Reverb AXS 34.9mm Diameter 100mm Travel, SRAM Part Number 00.6818.039.008
- Saddle
- Bontrager Saddle Arvada Austenite Rails Medium Black
- Rear Derailleur
- SRAM XX SL Eagle AXS, T-Type, SRAM part number 00.7518.147.000
- Cassette
- SRAM Eagle XS-1299, T-Type, 10-52, 12 speed, 00.2418.122.000
- Fork
- RockShox Pike Ultimate, DebonAir spring, Charger 3 RC2 damper, 44mm offset, Boost110, Maxle Stealth, 130mm travel, SRAM part number 00.4020.646.027
- Shifter
- SRAM AXS Pod Ultimate Right Bridge MMX, SRAM Part number 00.3018.308.001
- Battery
- SRAM eTap Battery Pack w/ Charger, SRAM PN 00.3018.201.001
- Rear Wheel
- Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, SRAM XD driver, Boost148, 12mm thru axle
- Front Wheel
- Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle
- Brake
- SRAM Level Ultimate 4-piston hydraulic disc, front 900mm hose length, SRAM part number 92.5020.700.100
- Crank
- SRAM XX Eagle, DUB, 30T, T-Type, 55mm chainline, 170mm length, 2-guard, SRAM part number 00.6118.623.037
- Decal
- Stick-On Trek Shield Headtube Badge, Black
- Seat Collar
- Bontrager Seat Collar 39.7mm For MTBs with 34.9mm Seatposts
- Tire
- Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120tpi, 29x2.40'', Black/Tan
- Armor
- Trek Armor Full Suspension Seatstay Brake Hose Rub Protector, clear adhesive paint rub guard
- Bag
- Trek NIP Reusable Dry Bag, roll top with buckle, waterproof, 50 cu in (0.8L), 45cm (l) x 16cm (w) x 8cm (h), black with white Trek logo
- Brake Rotor
- SRAM disc brake rotor, HS2 rounded, 160mm, 6-bolt, SRAM part number 00.5018.174.000
- Cable Management
- Trek Cable Management, Top Fuel 2022 BB cable exit guide, routes derailleur housing and rear brake lines to the chainstay
- Fastener
- Trek Waterbottle Bolt, M5x16.5mm, Alloy, Black
- Headset Part
- Bontrager Headset Top Cap for Knock Block Black
- Valve
- Bontrager TLR Valve, 50mm, Black
- Nut
- Bontrager Stem D-nut for XXX stems and RSL integrated bar/stems, Only available in a kit with matching M5 fasteners
- Stem Part
- Bontrager Stem Part for RSL Integrated handlebar/stem shim for Knock Block headsets
- Shock
- Rock Shox Rear Shock Deluxe Ultimate RCT, 185mm x 50mm, 54mm Standard Trunnion Mount Upper Width, 30mm x 8mm Pin Mount Lower Width, SRAM Part Number 00.4118.346.105
- Integrated Bar Stem
- Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 27.5mm handlebar rise, 820mm width, 0 degree stem rise, 35mm length
- Pump
- Bontrager Suspension Shock Pump Black
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.