Trek

2021 Trek Top Fuel 9.9 XTR

Previous used estimate

$2,997 - $3,083

Actual value depends on condition, size, and local demand.

2021 Trek Top Fuel 9.9 XTR

Value Guide market data · 2021 Trek Top Fuel 9.9 XTR

12-month projected trend

13%

Direction and magnitude, not judgment

vs. category average

8%

Drops faster than category avg

Price over time - 2021 Trek Top Fuel 9.9 XTR

$8.5k$4.7k$979MSRPMSRPYr 1Yr 2Yr 3Yr 4Yr 5Yr 6Yr 7Yr 7Yr 8Yr 9Yr 10Yr 11Yr 12Yr 13Yr 14Yr 14Yr 15Yr 16Yr 17Yr 18Yr 19Yr 20Yr 20

Values based on actual sales data. Enter your bike's specifics to get a precise valuation.

All Top Fuel model years

Overview

About this bike

Top Fuel 9.9 is a top-shelf full suspension mountain bike for riders who are serious about their fun. Its lightweight carbon frame is spec'd to the hilt with high-end suspension and high-performance parts. And all those fancy bits and bobs are really, really good at hitting the party line. It's right for you if... You're looking for the fastest way to a good time on the trail, and you're willing to crack open the piggy bank for top-shelf suspension and lots of lightweight carbon. The tech you get A light and stiff full carbon frame, 120mm Fox Factory 34 Step-Cast fork, 115mm of rear travel with a Fox Factory Float shock, and a Shimano XTR 1x12 drivetrain. Plus, wide carbon Bontrager Kovee Pro 30 wheels with a 108-tooth Rapid Drive hub for instant engagement, Bontrager DropLock dual remote suspension lockout, and lots of carbon everywhere. The final word With Top Fuel 9.9, you get a smooth, fast ride that doesn't shy away from rowdy trails. An OCLV Mountain Carbon frame, top-of-the-line suspension, and carbon components join forces for a nimble and insanely fun ride. Why you'll love it - It’s the ultimate down-country bike—light, capable, and trimmed with high-performance components - Wider Kovee Pro 30 wheels provide better tire support so you can run lower pressure and get more traction - Bontrager DropLock's shifter-style lever lets you easily lock out both front and rear shocks at the same time for added sprinting or climbing efficiently. Plus, it controls your dropper post too - This short-travel bike has a killer suspension setup reminiscent of the all-mighty mullet—it's both efficient and ready to party - Make it yours: it's fully customizable through Project One

Specifications

Subtype
Cross Country
Category
Mountain
Component Fork
Fox Factory 34 Step-Cast, Float EVOL air spring, FIT4 2-position damper, dual remote lockout, tapered steerer, 44mm offset, Kashima Coat, 15mm Kabolt axle, 120mm travel
Component Size
Small, Medium, Medium/Large, Large, X-Large
Component Stem
Bontrager Kovee Pro, 35mm, Knock Block, Blendr compatible, 13 degree
Product Family
Top Fuel
Component Axles
Front: 110 x 15mm thru-axle Rear: 148 x 12mm thru-axle
Component Chain
Shimano XTR M9100, 12 speed
Component Color
Gloss Red/Matte Carbon Smoke, Carbon Blue Smoke/Radioactive Coral, Matte Raw Carbon/Voodoo Trek Black
Component Frame
OCLV Mountain Carbon main frame & stays, tapered head tube, Knock Block, Control Freak internal routing, Carbon Armor, magnesium rocker link, Mino Link, ABP, 115mm travel
Component Brakes
Shimano XTR M9100 hydraulic disc, w/Shimano RT86 180/160mm rotors
Component Saddle
Bontrager Montrose Pro, 7x10mm carbon rails, 138mm width
Component Headset
Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom
Component Cassette
Shimano XTR M9100, 10-51, 12 speed
Component Crankset
Shimano XTR M9120, Boost (52mm chainline)
Component Shifters
Shimano XTR M9100, 12 speed
Component Handlebar
Bontrager Line Pro, OCLV Carbon, 35mm, 15mm rise, 750mm width
Component Seat Post
Bontrager Line Elite Dropper, internal routing, 31.6mm, Small: 100mm travel; Medium – Medium/Large: 150mm travel; Large – X-Large: 170mm travel
Component Chainrings
32T alloy ring
Component Front Tire
Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120tpi, 29x2.40''
Component Rear Shock
Fox Factory Float, 2-position DPS damper, Kashima Coat, 190x45mm
Component Tape Grips
Bontrager XR Trail Elite, alloy lock-on
Component Bottom Bracket
Shimano MT500, 92mm, PressFit
Component Rear Derailleur
Shimano XTR M9100, Shadow Plus, long cage, 51T max cog
Rear Shock
Fox Factory Float, 2-position DPS damper, Kashima Coat, 190x45mm
Crankset
Shimano XTR M9120, Boost (52mm chainline)
Bottom Bracket
Shimano MT500, 92mm, PressFit
Chain
Shimano XTR M9100, 12 speed
Saddle
Bontrager Montrose Pro, 7x10mm carbon rails, 138mm width
Handlebar
Bontrager Line Pro, OCLV Carbon, 35mm, 15mm rise, 750mm width
Headset
Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom
Rear Derailleur
Shimano XTR M9100, Shadow Plus, long cage, 51T max cog
Stem
Bontrager Kovee Pro, 35mm, Knock Block, Blendr compatible, 13 degree
Axles
Front: 110 x 15mm thru-axle Rear: 148 x 12mm thru-axle
Brakes
Shimano XTR M9100 hydraulic disc, w/Shimano RT86 180/160mm rotors
Cassette
Shimano XTR M9100, 10-51, 12 speed
Chainrings
32T alloy ring
Fork
Fox Factory 34 Step-Cast, Float EVOL air spring, FIT4 2-position damper, dual remote lockout, tapered steerer, 44mm offset, Kashima Coat, 15mm Kabolt axle, 120mm travel
Frame
OCLV Mountain Carbon main frame & stays, tapered head tube, Knock Block, Control Freak internal routing, Carbon Armor, magnesium rocker link, Mino Link, ABP, 115mm travel
Seat Post
Bontrager Line Elite Dropper, internal routing, 31.6mm, Small: 100mm travel; Medium – Medium/Large: 150mm travel; Large – X-Large: 170mm travel
Shifters
Shimano XTR M9100, 12 speed
Tape/Grips
Bontrager XR Trail Elite, alloy lock-on
Color
Matte Raw Carbon/Voodoo Trek Black
Size
X-Large
Front Tire
Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120tpi, 29x2.40''

What to check when buying used

Inspection

Frame condition

Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.

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.

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