Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
2023 Trek Fuel EX 8 XT Gen 6
Estimated used market value
$1,749 - $1,799
Actual value depends on condition, size, and local demand.
Value Guide market data · 2023 Trek Fuel EX 8 XT Gen 6
12-month projected trend
13%
Direction and magnitude, not judgment
vs. category average
8%
Drops faster than category avg
Price over time - 2023 Trek Fuel EX 8 XT Gen 6
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Fuel model years
Overview
About this bike
Fuel EX 8 is a dialed trail bike for riders who chase down rowdy descents and want a bike that's happy to pedal back to the top and do it again. It has a stout alloy frame and an upgraded Shimano XT drivetrain for smooth precise shifting. The 150mm Fox Rhythm fork makes easy work of rocks and roots while the Fox Float X shock keeps you in control. New in frame storage and adjustable geometry give you all the perks that come with the carbon model, but without the lofty price tag. You want a full suspension trail bike that prioritizes suspension and shifting performance over a more expensive carbon frame. A light and stiff alloy frame with 150mm FOX Rhythm fork with Float EVOL air spring and GRIP damper for small bump compliance, plus a FOX Performance Float X rear shock. A Shimano XT 12-speed drivetrain for snappy shifting, and tubeless-ready Bontrager wheels. Plus, new adjustable geometry that lets you take control of your setup. For the rider who doesn't want to be limited on the trail, Fuel EX 8 is ready to handle everything. Its progressive trail geometry is built to keep you charging, and upgraded components are they cherry on top. - This bike is built to take on the singletrack, with modern geometry that's evolved to handle the rough and rowdy - You'll get upgraded components where it matters most, with 12-speed XT shifting, and a rock-gobbling FOX Rhythm 36 fork - With the adjustable angle headset (angled cups sold separately) and Mino Link, you can choose from six different geometry configurations - We expanded our size range to ensure a better fit for all riders, and use the best-fitting wheels for each frame size: X-Small frames get 27.5" wheels, Small frames get to choose between 27.5" or 29", and sizes Medium and up get 29" wheels
Specifications
- Subtype
- Trail / Enduro
- Category
- Mountain
- Component Fork
- XS, S: Fox Rhythm 36, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 140mm travel S - XXL: Fox Rhythm 36, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 150mm travel
- Component Hubs
- Front: Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle Rear: Bontrager alloy, sealed bearing, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru axle
- Component Rims
- Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle
- Component Size
- X-Small, Small, Medium, Medium/Large, Large, X-Large, XX-Large
- Component Stem
- XS, S: Bontrager Elite, 35mm, 0 degree, 35mm length M - XXL: Bontrager Elite, 35mm, 0 degree, 45mm length
- Product Family
- Fuel
- Component Chain
- Shimano SLX M7100, 12 speed
- Component Color
- Matte Pennyflake, Galactic Grey to Black Fade
- Component Frame
- Alpha Platinum Aluminum, internal storage, angle-adjust headset, Mino Link adjustable geometry, adjustable leverage rate, guided internal routing, magnesium rocker link, 34.9mm seat tube, ISCG 05, 55mm chainline, BSA 73, downtube guard, shuttle guard, ABP, UDH, Boost148, 140mm travel
- Component Brakes
- Shimano 4-piston hydraulic disc, M6100 lever, M6120 caliper
- Component Pedals
- Sold Separately
- Component Rotors
- Front: Shimano RT66, 6-bolt, 180mm Rear: Shimano RT66, 6-bolt, 203mm
- Component Saddle
- Bontrager Arvada, hollow chromoly rails, 138mm width
- Component Headset
- Integrated cartridge bearing, 1-1/8'' top, 1.5'' bottom, angle adjust cup compatible
- Component Seatpost
- XS, S: TranzX JD-YSP39, 100mm travel, internal routing, 34.9mm M, ML: TranzX JD-YSP39, 150mm travel, internal routing, 34.9mm L - XXL: TranzX JD-YSP39, 170mm travel, internal routing, 34.9mm
- Component Shifters
- Shimano XT M8100, 12 speed
- Component Handlebar
- XS, S: Bontrager Line, alloy, 35mm, 27.5mm rise, 750mm width M - XXL: Bontrager Line, alloy, 35mm, 27.5mm rise, 780mm width
- Component Rear Tire
- XS, S:Bontrager XR5 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 60 tpi, 27.5x2.50'' S - XXL: Bontrager XR5 Team Issue, Tubeless Ready, aramid bead, 120 tpi, 29x2.50''
- Component Wheel Set
- Front: Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle Rear:
- Component Front Tire
- XS, S:Bontrager XR5 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 60 tpi, 27.5x2.50'' S - XXL: Bontrager XR5 Team Issue, Tubeless Ready, aramid bead, 120 tpi, 29x2.50''
- Component Rear Shock
- Fox Performance Float X, 2-position damper, 185mm x 55mm
- Component Tape Grips
- Bontrager XR Trail Elite, nylon lock-on
- Component Wheel Size
- 27.5-inch, 29-inch
- Component Rear Derailleur
- Shimano XT M8100, long cagev
- Component Accessories Extras
- Bontrager BITS Internal Frame Storage Bag
- Rear Shock
- Fox Performance Float X, 2-position damper, 185mm x 55mm
- Hubs
- Front: Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle Rear: Bontrager alloy, sealed bearing, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru axle
- Rims
- Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle
- Pedals
- Sold Separately
- Chain
- Shimano SLX M7100, 12 speed
- Seatpost
- XS, S: TranzX JD-YSP39, 100mm travel, internal routing, 34.9mm M, ML: TranzX JD-YSP39, 150mm travel, internal routing, 34.9mm L - XXL: TranzX JD-YSP39, 170mm travel, internal routing, 34.9mm
- Saddle
- Bontrager Arvada, hollow chromoly rails, 138mm width
- Handlebar
- XS, S: Bontrager Line, alloy, 35mm, 27.5mm rise, 750mm width M - XXL: Bontrager Line, alloy, 35mm, 27.5mm rise, 780mm width
- Headset
- Integrated cartridge bearing, 1-1/8'' top, 1.5'' bottom, angle adjust cup compatible
- Rear Derailleur
- Shimano XT M8100, long cagev
- Rear Tire
- XS, S:Bontrager XR5 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 60 tpi, 27.5x2.50'' S - XXL: Bontrager XR5 Team Issue, Tubeless Ready, aramid bead, 120 tpi, 29x2.50''
- Stem
- XS, S: Bontrager Elite, 35mm, 0 degree, 35mm length M - XXL: Bontrager Elite, 35mm, 0 degree, 45mm length
- Accessories & Extras
- Bontrager BITS Internal Frame Storage Bag
- Brakes
- Shimano 4-piston hydraulic disc, M6100 lever, M6120 caliper
- Fork
- XS, S: Fox Rhythm 36, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 140mm travel S - XXL: Fox Rhythm 36, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 150mm travel
- Frame
- Alpha Platinum Aluminum, internal storage, angle-adjust headset, Mino Link adjustable geometry, adjustable leverage rate, guided internal routing, magnesium rocker link, 34.9mm seat tube, ISCG 05, 55mm chainline, BSA 73, downtube guard, shuttle guard, ABP, UDH, Boost148, 140mm travel
- Shifters
- Shimano XT M8100, 12 speed
- Tape/Grips
- Bontrager XR Trail Elite, nylon lock-on
- Color
- Galactic Grey to Black Fade
- Size
- XX-Large
- Wheel Size
- 29-inch
- Rotors
- Front: Shimano RT66, 6-bolt, 180mm Rear: Shimano RT66, 6-bolt, 203mm
- Wheel Set
- Front: Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle Rear:
- Front Tire
- XS, S:Bontrager XR5 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 60 tpi, 27.5x2.50'' S - XXL: Bontrager XR5 Team Issue, Tubeless Ready, aramid bead, 120 tpi, 29x2.50''
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.