2022 Trek

Slash 9.9 XX1 AXS

A 29″ carbon frame full suspension enduro bike with ultra high-end components.

Manufacturer Price

$11,549
Weight30.9 lbs  
FrameCarbon
SuspensionFull, 160 / 170mm
ForkRockShox ZEB Ultimate
ShockRockShox Super Deluxe Ultimate
Wheels29″ Carbon
Drivetrain1 × 12 Electronic
GroupsetXX1 Eagle AXS, X01 Eagle AXS
BrakesHydraulic Disc
SeatpostDropper
Top Comparison
Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Slash 9.9 XX1 AXS
Other Enduro bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

26 mph

Slash 9.9 XX1 AXS

26 mph

Similar Bikes

Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Price History
Reviews
BikeRadar
Trek Slash 9.9 X0 AXS T-Type review

Nov 2023 · Luke Marshall

Trek has brought pedalling efficiency to the high-pivot market, but lost some of the design’s renowned sensitivity in the process

Highs
  • Well-mannered pedalling for a 170mm high-pivot bike

  • Balances stability and agile handling

  • Silent

  • Full of useful features

Lows
  • Firm shock damping tune reduces suspension sensitivity

  • Stiff wheels and handlebars

  • Tyres hinder capability

Read Review

Pinkbike
Field Test Review: 2024 Trek Slash - Rides Like a Session

Oct 2023 · Dario DiGiulio

Trek did a very good job making the Slash a quiet bike, then seemingly lost the plot when they specced a hard rubber chainslap protector that does little to mitigate the drivetrain noise in bumpy terrain.

Highs
  • Excellent geometry and balanced ride

  • Composed, capable, and predictable suspension

  • Climbs well for such a downhill-focused bike

  • Excels in challenging terrain

Lows
  • Chassis may be too stiff for some

  • Chain drop issues due to improperly spaced lower idler (fixed)

  • Stock chainstay protector did very little to manage noise

Read Review

Loam Wolf
Review: Trek Slash 9.9 XO1

Aug 2022

The Trek Slash 9 9 shines on the steeps and excels in the rough, making it an almost perfect rig for enduro racing. Read the full Trek Slash 9.9 XO1 Review here.

Highs
  • Steep terrain crusher

  • Rough terrain performance

  • Fun jumper

Lows
  • Not the best climber

  • Ineffective drain tube

Read Review

Beta
The Beta Tests: Trek Slash 9.8

Mar 2021 · Lydia Tanner

The Trek Slash has been 29-inch-only since 2016, and the 2021 version is evidence of its head start in the big-wheel enduro category.

Highs
  • Superb high-speed stability

  • Great traction in variable terrain

  • Supple and generous-feeling suspension

Lows
  • Less maneuverable at slow speeds

  • A lot of bike to get back up the hill

Read Review

NSMB
2021 Trek Slash 9.9 XO1 - Full Review

Feb 2021

Riding a bike like the Slash over the winter on the North Shore is a rough test scenario, but Trek's newest long travel trail bike has proven up to the task...

Read Review

Mountain Bike Action
Mountain Bike Action Bike Test: Trek Slash Enduro Bike - Mountain Bike Action Magazine

Feb 2021 · McCoy

One Killer Enduro Machine

Read Review

Bike Perfect
Trek Slash 9.9 X01 Enduro MTB review

Feb 2021 · Guy Kesteven

We took the Trek Slash 9.9 X01 to our toughest local trails to see how its new shape and unique shock translate to the real world

Highs
  • Phenomenal rear suspension

  • Easy setup

  • Awesome aggro geometry

  • Precision accuracy

  • High control cockpit

  • Internal storage

  • Efficient pedaling

  • Threaded BB

  • Optional steering lock

Lows
  • More confident with switched tires

  • ZEB fork requires some patience

  • Deserves better wheels

  • Short dropper on small sizes

  • Seriously grounded rather than playful

Read Review

Flow Mountain Bike
Trek Slash Review | A totally one-of-a-kind custom bike build

Feb 2021

Starting with a new Trek Slash 8 frameset, fellow Flow Frother Ben has chosen a rather eclectic build kit to complete his unique enduro bike. Read on for a closer look at the parts he's chosen, and a detailed explanation of what's worked well, and what hasn't worked so well.

Read Review

Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Frame

OCLV Mountain Carbon main frame & stays, internal storage, tapered head tube, Knock Block 2.0, Control Freak internal routing, Carbon Armor, shuttle guard, threaded BB, ISCG 05, 34.9mm seat tube, magnesium rocker link, Mino Link, ABP, Boost148, 160mm travel

BB StandardBSA, 73mm, Threaded

Tire Clearance2.5"

ColorsMatte Battleship Blue; Radioactive Coral to Yellow Fade

Fork

RockShox ZEB Ultimate, DebonAir spring, Charger 2.1 RC2 damper, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 170mm travel

Travel170mm

Spring TypeAir

Shock

NEW RockShox Super Deluxe Ultimate, DebonAir spring, Thru Shaft 3-position damper, 230x62.5mm

Travel160mm

Spring TypeAir

Bottom Bracket

SRAM DUB MTB Wide, 73mm, BSA threaded

Headset

Knock Block 2.0 Integrated, 72-degree radius (includes infinite-radius chip), sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom

Handlebar

Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 27.5 mm handlebar rise, 820 mm width, 0-degree stem rise, 35 mm stem length

Saddle

Bontrager Arvada, austenite rails, 138mm width

Seatpost

Size: S, RockShox Reverb AXS, 100mm travel, wireless, 34.9mm, 340mm length; Size: M, ML, RockShox Reverb AXS, 150mm travel, wireless, 34.9mm, 440mm length; Size: L, XL, RockShox Reverb AXS, 170mm travel, wireless, 34.9mm, 480mm length

TypeDropper

Grips

Bontrager XR Trail Pro, alloy lock-on

Groupset
Rear Derailleur

SRAM XX1 Eagle AXS

Crank

SRAM XX1 Eagle, DUB, 30T alloy ring, 55mm chainline, 170mm length

Shifters

SRAM Eagle AXS, wireless, 12 speed

Cassette

SRAM Eagle XG-1299, 10-52, 12 speed

Chain

SRAM XX1 Eagle, 12 speed

Brakes

SRAM Code RSC 4-piston hydraulic disc

TypeHydraulic Disc

Wheels
Rims

Front: Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, Rear: Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, SRAM XD driver, Boost148, 12mm thru axle

Tires

Size: S, M, ML, L, XL, Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29x2.50''; Size: S, M, ML, L, XL, Bontrager SE6 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29x2.50''

Disc Rotors

Size: S, M, ML, L, XL, SRAM CenterLine, 6-bolt, round edge, 180mm; Size: S, M, ML, L, XL, SRAM CenterLine, 6-bolt, round edge, 200mm

Rider Notes
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