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Trek Top Fuel 9.9 XX1 AXS Gen 3

By Trek
$7,999.99 $11,499.99
SKU: 5263271 // Barcode: 601842654316
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Top Fuel 9.9 XX1 AXS pulls out all the stops. This full suspension carbon mountain bike is built with the latest in fully wireless components like a SRAM XX1 Eagle AXS drivetrain and RockShox Reverb AXS dropper. Its also specd with high-end RockShox suspension and lots of carbon—including the wheels, bars, and shift levers.
  • The SRAM XX1 Eagle AXS drivetrain is smart, smooth, and completely wireless
  • The OCLV Carbon RSL integrated bar/stem is ultralight, ultra-comfortable, and it looks awesome
  • A sleek internal storage compartment gives you a versatile spot to stow tools and gear
  • Wider Line Pro 30 wheels provide better tire support so you can run lower pressure and get more traction
  • Make it yours: its fully customizable through Project One

Active Braking Pivot

Active Braking Pivot allows our engineers to tune how the suspension reacts to acceleration and braking forces independently. That means you get more confident control when you need it most.

Quick and in control

120mm of rear travel combined with progressive trail geometry gives you a fast, responsive ride that helps you keep your cool when the trail turns rowdy.

Internal Storage

Internal frame storage makes it easy to ditch the pack and still carry your ride essentials.

Hassle-free routing

Guided internal cable routing keeps Top Fuel quiet on the trail and maintenance a breeze.

Will my bike have a curved top tube?

Smaller frames (XS and S) have a curved top tube. This design makes for a lower standover height, which allows shorter riders to straddle the bike more easily. Larger frames (M and up) have a straight top tube because taller riders with longer legs typically dont have the same issues with standover height.


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
Fork RockShox SID Ultimate, DebonAir spring, Charger Race Day damper, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 120mm travel
Shock RockShox Deluxe Ultimate RCT, 185mm x 50mm
Wheel Front Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 29 /
Wheel Rear Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, SRAM XD driver, Boost148, 12mm thru axle, 29
Tire Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120tpi, 29x2.40
Tire Part Bontrager TLR sealant, 6oz
Rim Strip Bontrager TLR
Skewer Rear Bontrager Switch thru axle, removable lever
Shifter SRAM Eagle AXS, wireless, 12 speed // SRAM Eagle AXS, wireless, 12 speed
Rear Derailleur SRAM XX1 Eagle AXS
Crank SRAM XX1 Eagle, DUB, 30T alloy ring, 55mm chainline, 170mm length
Bottom Bracket SRAM DUB MTB Wide, 73mm, BSA threaded
Cassette SRAM Eagle XG-1299, 10-52, 12 speed
Chain SRAM XX1 Eagle, 12 speed
Brake SRAM G2 Ultimate hydraulic disc, carbon levers // SRAM G2 Ultimate hydraulic disc, carbon levers
Brake Rotor SRAM CenterLine, 6-bolt, round edge, 160mm // SRAM CenterLine, 6-bolt, round edge, 180mm
Saddle Bontrager Arvada, austenite rails, 138mm width
Seatpost RockShox Reverb AXS, 100mm travel, wireless, 34.9mm, 340mm length
Handlebar Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 27.5mm handlebar rise, 820mm width, 0 degree stem rise, 35mm stem length
Headset Knock Block 2.0 Integrated, 72-degree radius (includes infinite-radius chip), sealed cartridge bearing, 1-1/8 top, 1.5 bottom
Battery SRAM eTap battery pack (with charger)

Geometry Chart

SMMLLXL
B B Drop 3.1
B B Height 34.3
Chainstay Length 43.4
Eff Seat Tube Angle 76.4°
Eff Top Tube 56.7
Frame Reach 42.4
Frame Size Letter S
Frame Size Number 15.5
Frame Stack 59.2
Head Angle 66.4°
Head Tube Length 10
Offset 4.4
Position High
Seat Tube 39.5
Seat Tube Angle 70.4°
Standover 71.9
Trail 11.5
Wheelbase 115
Wheel Size 29"
B B Drop 3.1
B B Height 34.3
Chainstay Length 43.4
Eff Seat Tube Angle 76.4°
Eff Top Tube 59.7
Frame Reach 45.4
Frame Size Letter M
Frame Size Number 17.5
Frame Stack 59.2
Head Angle 66.4°
Head Tube Length 10
Offset 4.4
Position High
Seat Tube 42
Seat Tube Angle 70.4°
Standover 74
Trail 11.5
Wheelbase 118
Wheel Size 29"
B B Drop 3.1
B B Height 34.3
Chainstay Length 43.4
Eff Seat Tube Angle 76.4°
Eff Top Tube 61.4
Frame Reach 46.9
Frame Size Letter ML
Frame Size Number 18.5
Frame Stack 59.7
Head Angle 66.4°
Head Tube Length 10.5
Offset 4.4
Position High
Seat Tube 43.5
Seat Tube Angle 70.4°
Standover 74.5
Trail 11.5
Wheelbase 119.7
Wheel Size 29"
B B Drop 3.1
B B Height 34.3
Chainstay Length 43.4
Eff Seat Tube Angle 76.4°
Eff Top Tube 63
Frame Reach 48.4
Frame Size Letter L
Frame Size Number 19.5
Frame Stack 60.1
Head Angle 66.4°
Head Tube Length 11
Offset 4.4
Position High
Seat Tube 45
Seat Tube Angle 70.4°
Standover 75
Trail 11.5
Wheelbase 121.4
Wheel Size 29"
B B Drop 3.1
B B Height 34.3
Chainstay Length 43.4
Eff Seat Tube Angle 76.4°
Eff Top Tube 65.3
Frame Reach 50.4
Frame Size Letter XL
Frame Size Number 21.5
Frame Stack 61.5
Head Angle 66.4°
Head Tube Length 12.5
Offset 4.4
Position High
Seat Tube 50
Seat Tube Angle 70.4°
Standover 76
Trail 11.5
Wheelbase 124
Wheel Size 29"

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