Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
2023 Trek Top Fuel 9.8 GX AXS
Previous used estimate
$2,964 - $3,049
Actual value depends on condition, size, and local demand.
Value Guide market data · 2023 Trek Top Fuel 9.8 GX AXS
12-month projected trend
13%
Direction and magnitude, not judgment
vs. category average
17%
Drops faster than category avg
Price over time - 2023 Trek Top Fuel 9.8 GX 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▲ 150% vs. 2023
2025$7,259 - $7,468▲ 145% vs. 2023
2024$5,746 - $5,912▲ 94% vs. 20232023$2,964 - $3,049Currently viewing
2022$3,739 - $3,847▲ 26% vs. 2023
2021$3,063 - $3,151▲ 3% vs. 2023
2020$3,371 - $3,468▲ 14% vs. 2023
2019$1,149 - $1,182▼ 61% vs. 2023
2018$1,234 - $1,270▼ 58% vs. 2023Overview
About this bike
Top Fuel 9.8 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 parts package—including a new SRAM GX Eagle AXS wireless electronic drivetrain—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 Fork
- RockShox Pike Select+, DebonAir spring, Charger 3 RC2 damper, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 130mm travel
- Component Hubs
- Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle
- Component Rims
- Bontrager Line Elite 30, Tubeless Ready
- Component Size
- Small, Medium, Medium/Large, Large, X-Large
- Component Stem
- Bontrager Line Pro, 35mm, Knock Block, Blendr compatible, 0 degree, 45mm length
- Product Family
- Top Fuel
- Component Chain
- SRAM GX Eagle, 12 speed
- Component Color
- Matte Raw Carbon, Pennyflake, Satin Baja Yellow, Carbon Red Smoke
- 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 RS 4-piston hydraulic disc // SRAM G2 RS 4-piston hydraulic disc
- Component Rotors
- SRAM CenterLine, 6-bolt, round-edge, 160mm // SRAM CenterLine, 6-bolt, round edge, 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 GX Eagle, DUB MTB Wide, 30T, 55mm chainline, 170 length
- Component Seatpost
- Bontrager Line Elite Dropper, 150mm travel, MaxFlow, internal routing, 34.9mm, 440mm length
- Component Shifters
- SRAM GX Eagle AXS, 12 speed
- Component Handlebar
- Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 780mm width
- 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 Tape Grips
- Bontrager XR Trail Elite, nylon lock-on
- Component Wheel Size
- 29-inch
- Component Bottom Bracket
- SRAM DUB MTB Wide, 73mm, BSA threaded
- Component Rear Derailleur
- SRAM GX Eagle AXS
- Component Cassette Freewheel
- SRAM Eagle XG-1275, 10-52, 12 speed
- Rear Shock
- RockShox Deluxe Ultimate RCT, 185mm x 50mm
- Hubs
- Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle
- Rims
- Bontrager Line Elite 30, Tubeless Ready
- Crankset
- SRAM GX Eagle, DUB MTB Wide, 30T, 55mm chainline, 170 length
- Bottom Bracket
- SRAM DUB MTB Wide, 73mm, BSA threaded
- Chain
- SRAM GX Eagle, 12 speed
- Seatpost
- Bontrager Line Elite Dropper, 150mm travel, MaxFlow, internal routing, 34.9mm, 440mm length
- Saddle
- Bontrager Arvada, austenite rails, 138mm width
- Handlebar
- Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 780mm width
- 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 GX Eagle AXS
- Rear Tire
- Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120tpi, 29x2.40''
- Stem
- Bontrager Line Pro, 35mm, Knock Block, Blendr compatible, 0 degree, 45mm length
- Brakes
- SRAM G2 RS 4-piston hydraulic disc // SRAM G2 RS 4-piston hydraulic disc
- Fork
- RockShox Pike Select+, DebonAir spring, Charger 3 RC2 damper, tapered steerer, 44mm offset, Boost110, 15mm 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 GX Eagle AXS, 12 speed
- Tape/Grips
- Bontrager XR Trail Elite, nylon lock-on
- Color
- Carbon Red Smoke
- Size
- X-Large
- Wheel Size
- 29-inch
- Cassette/Freewheel
- SRAM Eagle XG-1275, 10-52, 12 speed
- Rotors
- SRAM CenterLine, 6-bolt, round-edge, 160mm // SRAM CenterLine, 6-bolt, round edge, 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.