Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
2026 Trek Top Fuel RSL Gen 4
Previous used estimate
$7,399 - $7,613
Actual value depends on condition, size, and local demand.
Value Guide market data · 2026 Trek Top Fuel RSL Gen 4
12-month projected trend
2%
Direction and magnitude, not judgment
vs. category average
34%
Drops faster than category avg
Price over time - 2026 Trek Top Fuel RSL Gen 4
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
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Compare Top Fuel RSL Gen 4 models
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Overview
About this bike
Top Fuel RSL takes the ride-anything capability of our favorite short-travel trail bike and ups the race-ready factor. Its OCLV Mountain Carbon frame partners with a 120mm RockShox SID Ultimate fork and 120mm SIDLuxe Ultimate shock — both with Flight Attendant. It comes ready to rally with Bontrager Kovee Elite 30 carbon wheels, a SRAM X0 AXS 12-speed wireless transmission, a Bontrager Line dropper post, and a carbon Bontrager RSL integrated handlebar/stem.
Specifications
- Subtype
- Cross Country
- Category
- Mountain
- Component Fork
- RockShox SID Ultimate, Flight Attendant Race Day damper, Stealth DebonAir spring, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 120mm travel
- Component Rims
- Bontrager TLR
- Component Size
- Medium, Medium/Large, Large, X-Large
- Component Stem
- Size: M, ML Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 0mm handlebar rise, 750mm width, -13 degree stem rise, 80mm length/Size: XL, L Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 0mm handlebar rise, 750mm width, -13 degree stem rise, 90mm length
- Product Family
- Top Fuel
- Component Chain
- SRAM X0 Eagle, T-Type, 12 speed
- Component Color
- Navy Smoke
- Component Frame
- OCLV Mountain Carbon, internal storage, tapered head tube, internal guided routing, downtube guard, alloy rocker link, 4-way Mino Link, ABP, Boost148, 120mm travel
- Component Brakes
- SRAM Motive Silver 4-piston hydraulic disc
- Component Rotors
- SRAM HS2, 6-bolt, 180mm
- Component Saddle
- Verse Short Pro, carbon rails, 145mm width
- Component Crankset
- SRAM XO Eagle, DUB, 34T, T-Type, 55mm chainline, 170mm length
- Component Seatpost
- Bontrager Line Dropper, 170mm travel, MaxFlow, internal routing, 34.9mm, 450mm length
- Component Shifters
- SRAM AXS pod
- Component Rear Tire
- Pirelli Scorpion XC RC, Tubeless Ready, Team Edition Pro Wall, aramid bead, 120 tpi, 29x2.40''
- Component Wheel Set
- Front Wheel: Bontrager Kovee Elite 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 29''/Rear Wheel: Bontrager Kovee Elite 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, Boost148, 12mm thru axle, 29"
- Component Front Tire
- Pirelli Scorpion XC RC, Tubeless Ready, Team Edition Pro Wall, aramid bead, 120 tpi, 29x2.40''
- Component Rear Shock
- RockShox SIDLuxe Ultimate Flight Attendant, 185x50mm
- Component Tape Grips
- Trek Line Elite, lock-on
- Component Wheel Size
- 29-inch
- Component Bottom Bracket
- SRAM DUB MTB Wide, 73mm, BSA threaded
- Component Rear Derailleur
- SRAM X0 Eagle AXS, T-Type
- Component Cassette Freewheel
- SRAM Eagle XS-1295, T-Type, 10-52, 12 speed
- Rear Shock
- RockShox SIDLuxe Ultimate Flight Attendant, 185x50mm
- Rims
- Bontrager TLR
- Crankset
- SRAM XO Eagle, DUB, 34T, T-Type, 55mm chainline, 170mm length
- Bottom Bracket
- SRAM DUB MTB Wide, 73mm, BSA threaded
- Chain
- SRAM X0 Eagle, T-Type, 12 speed
- Seatpost
- Bontrager Line Dropper, 170mm travel, MaxFlow, internal routing, 34.9mm, 450mm length
- Saddle
- Verse Short Pro, carbon rails, 145mm width
- Rear Derailleur
- SRAM X0 Eagle AXS, T-Type
- Rear Tire
- Pirelli Scorpion XC RC, Tubeless Ready, Team Edition Pro Wall, aramid bead, 120 tpi, 29x2.40''
- Stem
- Size: M, ML Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 0mm handlebar rise, 750mm width, -13 degree stem rise, 80mm length/Size: XL, L Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 0mm handlebar rise, 750mm width, -13 degree stem rise, 90mm length
- Brakes
- SRAM Motive Silver 4-piston hydraulic disc
- Fork
- RockShox SID Ultimate, Flight Attendant Race Day damper, Stealth DebonAir spring, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 120mm travel
- Frame
- OCLV Mountain Carbon, internal storage, tapered head tube, internal guided routing, downtube guard, alloy rocker link, 4-way Mino Link, ABP, Boost148, 120mm travel
- Shifters
- SRAM AXS pod
- Tape/Grips
- Trek Line Elite, lock-on
- Color
- Navy Smoke
- Size
- X-Large
- Wheel Size
- 29-inch
- Cassette/Freewheel
- SRAM Eagle XS-1295, T-Type, 10-52, 12 speed
- Rotors
- SRAM HS2, 6-bolt, 180mm
- Wheel Set
- Front Wheel: Bontrager Kovee Elite 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 29''/Rear Wheel: Bontrager Kovee Elite 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, Boost148, 12mm thru axle, 29"
- Front Tire
- Pirelli Scorpion XC RC, Tubeless Ready, Team Edition Pro Wall, aramid bead, 120 tpi, 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.