Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
2023 Trek Fuel EX 9.9 XTR Gen 6
Previous used estimate
$3,936 - $4,049
Actual value depends on condition, size, and local demand.
Value Guide market data · 2023 Trek Fuel EX 9.9 XTR Gen 6
12-month projected trend
14%
Direction and magnitude, not judgment
vs. category average
12%
Drops faster than category avg
Price over time - 2023 Trek Fuel EX 9.9 XTR 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 9.9 combines a light and nimble carbon frame with Shimano's best drivetrain and top-shelf suspension for a ride that's ready to rally wherever you point it. It's dripping with high-end upgrades like buttery-smooth Kashima coat, quick-engaging carbon wheels, a super-slick one-piece bar and stem, and handy multi tool hidden in the steerer tube.
Specifications
- Subtype
- Trail / Enduro
- Category
- Mountain
- Component Bag
- Bontrager Bits Bag For Storage Door, Black
- Component Rim
- Bontrager Line Pro 30 Rim, 27.5in 28h TLR Disc, Presta, Black
- Component Cage
- Bontrager Right Side-Load Water Bottle Cage, Gloss Black
- Component Fork
- Fox Factory 36, 27.5 wheel size, Float EVOL air spring, GRIP2 damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 150mm travel, Fox part number 910-26-578
- Component Stay
- Trek Chainstay Fuel EX 29 2023 Carbon, 148x12 OLD, Paint Match Gloss Deep Smoke
- Component Tool
- Bontrager BITS Integrated MTB Tool, with In-Headset Storage, with 10 Function Multitool, Exact bolt and spacer stack to vary by steer tube length, refer to Manual on Bontrager BITS Integrated MTB Tool page
- Product Family
- Fuel
- Component Armor
- Trek Armor Full Suspension Seatstay Brake Hose Rub Protector, clear adhesive paint rub guard
- Component Brake
- Shimano XTR Brake Set. Item Number: BL-M9120(L) - BR-M9120(F), Resin Pad (with Fin), Post Mount, Hose: SM-BH90-SBM, Hose length: 850mm, Compatible brake pads: K03Ti (Resin), K04Ti (Metal). (Visit si.shimano.com for compatibility, manuals and exploded views)
- Component Chain
- Shimano XTR Chain. Item Number: M9100, 12-Speed, With Quick Link (Visit si.shimano.com for compatibility, manuals and exploded views)
- Component Cover
- Trek Storage Door Fuel EX 29 2023 painted cover with assembled lever & latch mechanism, no bottle cage, Paint Match Gloss Deep Smoke and Anodized Root Beer Lever
- Component Decal
- Stick-On Trek Shield Headtube Badge, Black
- Component Grips
- Bontrager Grips XR Trail Elite, 130mm, Black
- Component Shock
- Fox Rear Shock Factory Float X, 2-position damper, 185mm x 55mm, 54mm x 10mm standard trunnion upper width, 40mm x 8mm lower eyelet width, Fox Part Number 979-61-003
- Component Valve
- Bontrager TLR Valve, 50mm, Black
- Component Saddle
- Bontrager Arvada Pro, Medium, Black
- Component Spacer
- Headset Spacer, 5mm 1-1/8in, Black
- Component Bearing
- FSA Headset Bearing, MR122, 1-1/8in
- Component Headset
- Trek Fuel EX 2023 Headset, Semi-Integrated Cups, Fixed Angle Headset does not alter stock geometry, For 1-1/8'' to 1.5'' tapered forks, uses standard FSA angular contact bearings
- Component Shifter
- Shimano XTR Shifter. Item Number: SL-M9100-IR, 12-Speed, Rapidfire Plus, Inner Cable Length: 2050mm, Without Optical Gear Display. (Visit si.shimano.com for compatibility, manuals and exploded views)
- Component Cassette
- Shimano XTR Cassette. Item Number: CS-M9101, 12-Speed, 10-12-14-16-18-21-24-28-33-39-45-51T. (Visit si.shimano.com for compatibility, manuals and exploded views)
- Component Fastener
- Trek Fastener M4x0.7x16mm Flat Head Countersunk 3mm Hex Driver For Use with Knock Block Frame Chip and Control Freak Cable Management, quantities needed vary by bike model
- Component Rear Hub
- Bontrager 108, Microspline, 148x12, 6 bolt, black
- Component Seatpost
- Bontrager Dropper Seatpost Line Elite Oversized 34.9mm Diameter 100mm Travel
- Component Brake Pad
- Brake Pad, Shimano D-Series Shape : CONFIRM COMPATIBILITY BEFORE USE. BRAKE SPEC IS SUBJECT TO SUBSTITUTION AND MAY VARY.
- Component Front Hub
- Bontrager 108, 110x15, 6 bolt, black
- Component Rim Strip
- Bontrager Enduro 27.5/650 TLR Rim Stripe, 33mm, Symmetric Profile
- Component Tire Part
- Bontrager TLR Tire Sealant 6 oz. Bottle
- Component Rear Wheel
- Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru axle
- Component Brake Rotor
- Shimano XT Disc Brake Rotor, SM-RT86, 180mm/6-Bolt, (Visit si.shimano.com for compatibility, manuals and exploded views)
- Component Front Wheel
- NEW Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle
- Component Rear Skewer
- Bontrager ''Switch'' 12mm Thru Axle, Removable Lever, M12 Thread, 184.5mm Length, Black
- Component Seat Collar
- Bontrager Seat Collar 39.7mm For MTBs with 34.9mm Seatposts
- Component Headset Part
- Trek Fuel EX 2023 Headset, Semi-Integrated Upper Cup, elongated shape to allow conversion to Angle Adjust headset, for use with standard Angular Contact Bearings
- Component Seatpost Part
- Bontrager Line Elite Dropper Seatpost 1x Lever, Left-hand Under bar mounted. Mounted to Matchmaker X or I-Spec mounts OE, replacement lever includes band clamp mount. Black
- Component Bottom Bracket
- E*thirteen BB20-P, BSA threaded, 73mm width
- Component Touch Up Paint
- Paint Color: Gloss Deep Smoke, TK017-S
- Component Rear Derailleur
- Shimano XTR Derailleur Rear. Item Number: RD-M9100, 12-Speed, Direct Attachment, SGS Cage, Max 51T, Shadow Plus design. (Visit si.shimano.com for compatibility, manuals and exploded views)
- Component Suspension Link
- Trek Rocker Link Fuel EX 29 2023 Magnesium, Paint Match Gloss Deep Smoke
- Component Cable Management
- Trek Cable Management, Top Fuel 2022 BB cable exit guide, routes derailleur housing and rear brake lines to the chainstay
- Component Derailleur Hanger
- SRAM Derailleur Hanger Universal Derailleur Hanger, with 30mm Diameter Washer for Trek ABP Full Suspension Models
- Component Integrated Bar Stem
- Bontrager RSL MTB Handlebar/Stem, 820mm Width, 35mm Stem Length, 27.5mm Rise, 0 Degree Stem Rise, 7 Degree Backsweep, 6 Degree Upsweep, Carbon
- Bottom Bracket
- E*thirteen BB20-P, BSA threaded, 73mm width
- Chain
- Shimano XTR Chain. Item Number: M9100, 12-Speed, With Quick Link (Visit si.shimano.com for compatibility, manuals and exploded views)
- Seatpost
- Bontrager Dropper Seatpost Line Elite Oversized 34.9mm Diameter 100mm Travel
- Saddle
- Bontrager Arvada Pro, Medium, Black
- Headset
- Trek Fuel EX 2023 Headset, Semi-Integrated Cups, Fixed Angle Headset does not alter stock geometry, For 1-1/8'' to 1.5'' tapered forks, uses standard FSA angular contact bearings
- Rear Derailleur
- Shimano XTR Derailleur Rear. Item Number: RD-M9100, 12-Speed, Direct Attachment, SGS Cage, Max 51T, Shadow Plus design. (Visit si.shimano.com for compatibility, manuals and exploded views)
- Cassette
- Shimano XTR Cassette. Item Number: CS-M9101, 12-Speed, 10-12-14-16-18-21-24-28-33-39-45-51T. (Visit si.shimano.com for compatibility, manuals and exploded views)
- Fork
- Fox Factory 36, 27.5 wheel size, Float EVOL air spring, GRIP2 damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 150mm travel, Fox part number 910-26-578
- Front Hub
- Bontrager 108, 110x15, 6 bolt, black
- Rear Hub
- Bontrager 108, Microspline, 148x12, 6 bolt, black
- Shifter
- Shimano XTR Shifter. Item Number: SL-M9100-IR, 12-Speed, Rapidfire Plus, Inner Cable Length: 2050mm, Without Optical Gear Display. (Visit si.shimano.com for compatibility, manuals and exploded views)
- Rear Wheel
- Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru axle
- Front Wheel
- NEW Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle
- Brake
- Shimano XTR Brake Set. Item Number: BL-M9120(L) - BR-M9120(F), Resin Pad (with Fin), Post Mount, Hose: SM-BH90-SBM, Hose length: 850mm, Compatible brake pads: K03Ti (Resin), K04Ti (Metal). (Visit si.shimano.com for compatibility, manuals and exploded views)
- Decal
- Stick-On Trek Shield Headtube Badge, Black
- Grips
- Bontrager Grips XR Trail Elite, 130mm, Black
- Rim
- Bontrager Line Pro 30 Rim, 27.5in 28h TLR Disc, Presta, Black
- Rim Strip
- Bontrager Enduro 27.5/650 TLR Rim Stripe, 33mm, Symmetric Profile
- Seat Collar
- Bontrager Seat Collar 39.7mm For MTBs with 34.9mm Seatposts
- Touch-Up Paint
- Paint Color: Gloss Deep Smoke, TK017-S
- Armor
- Trek Armor Full Suspension Seatstay Brake Hose Rub Protector, clear adhesive paint rub guard
- Bag
- Bontrager Bits Bag For Storage Door, Black
- Bearing
- FSA Headset Bearing, MR122, 1-1/8in
- Brake Rotor
- Shimano XT Disc Brake Rotor, SM-RT86, 180mm/6-Bolt, (Visit si.shimano.com for compatibility, manuals and exploded views)
- Cable Management
- Trek Cable Management, Top Fuel 2022 BB cable exit guide, routes derailleur housing and rear brake lines to the chainstay
- Cage
- Bontrager Right Side-Load Water Bottle Cage, Gloss Black
- Cover
- Trek Storage Door Fuel EX 29 2023 painted cover with assembled lever & latch mechanism, no bottle cage, Paint Match Gloss Deep Smoke and Anodized Root Beer Lever
- Derailleur Hanger
- SRAM Derailleur Hanger Universal Derailleur Hanger, with 30mm Diameter Washer for Trek ABP Full Suspension Models
- Fastener
- Trek Fastener M4x0.7x16mm Flat Head Countersunk 3mm Hex Driver For Use with Knock Block Frame Chip and Control Freak Cable Management, quantities needed vary by bike model
- Headset Part
- Trek Fuel EX 2023 Headset, Semi-Integrated Upper Cup, elongated shape to allow conversion to Angle Adjust headset, for use with standard Angular Contact Bearings
- Rear Skewer
- Bontrager ''Switch'' 12mm Thru Axle, Removable Lever, M12 Thread, 184.5mm Length, Black
- Spacer
- Headset Spacer, 5mm 1-1/8in, Black
- Tire Part
- Bontrager TLR Tire Sealant 6 oz. Bottle
- Valve
- Bontrager TLR Valve, 50mm, Black
- Seatpost Part
- Bontrager Line Elite Dropper Seatpost 1x Lever, Left-hand Under bar mounted. Mounted to Matchmaker X or I-Spec mounts OE, replacement lever includes band clamp mount. Black
- Brake Pad
- Brake Pad, Shimano D-Series Shape : CONFIRM COMPATIBILITY BEFORE USE. BRAKE SPEC IS SUBJECT TO SUBSTITUTION AND MAY VARY.
- Tool
- Bontrager BITS Integrated MTB Tool, with In-Headset Storage, with 10 Function Multitool, Exact bolt and spacer stack to vary by steer tube length, refer to Manual on Bontrager BITS Integrated MTB Tool page
- Shock
- Fox Rear Shock Factory Float X, 2-position damper, 185mm x 55mm, 54mm x 10mm standard trunnion upper width, 40mm x 8mm lower eyelet width, Fox Part Number 979-61-003
- Stay
- Trek Chainstay Fuel EX 29 2023 Carbon, 148x12 OLD, Paint Match Gloss Deep Smoke
- Suspension Link
- Trek Rocker Link Fuel EX 29 2023 Magnesium, Paint Match Gloss Deep Smoke
- Integrated Bar Stem
- Bontrager RSL MTB Handlebar/Stem, 820mm Width, 35mm Stem Length, 27.5mm Rise, 0 Degree Stem Rise, 7 Degree Backsweep, 6 Degree Upsweep, Carbon
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.