2022 Trek

Slash 8

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

Manufacturer Price

$4,229
Weight33.2 lbs  
FrameAluminum
SuspensionFull, 160 / 170mm
ForkRockShox Lyrik Select+
ShockRockShox Super Deluxe Ultimate
Wheels29″ Aluminum
Drivetrain1 × 12
GroupsetGX Eagle, X1
BrakesHydraulic Disc
SeatpostDropper
Top Comparison
Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Slash 8
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 8

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
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

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MBR
Trek Slash 9.8 XT review - MBR

Apr 2022 · Alan Muldoon

The Trek Slash 9.8 XT is an enduro bike with progressive geometry and 29er wheels and 170/160mm of travel, and offers a performance that seriously impressive. Good enough to make it on our list of the best enduro mountain bikes? Absolutely. It’s good enough to score a  10 out of 10; a rare feat. Trek Slash 9.8 XT need to know: Mino Link geometry adjustment allows for a 27.5in Mullet setup KnockBlock 2.0 offers an increases the steering angle from 58º to 72º and can be removed if needed A bash guard on the MRP chain guide helps protects the 30t XT chainring RockShox Super Deluxe Ultimate shock sports ThruShaft technology to control the 160mm travel We took the Trek Slash 9.9 XO1 for a first ride when it launched last year, and while the 2022 bike looks remarkably similar, right down to the frame colour of the bike we featured last time, there are several differences. The main one being that the XT equipped bike is £1,500 cheaper and there are changes to the specification that reflect its lower price. You get a full Shimano XT drivetrain and 4-piston XT brakes, rather than SRAM XO1. You also get a RockShox Zeb Select+ fork rather than the Ultimate, while the Bontrager Line Carbon 30 wheels switch to the alloy version. Downgrades? Yes, but none that should detract from the underlying ride quality of the Slash. The most important thing is that the OCLV carbon frame remains unchanged, so you still benefit from all of the advances in the frame geometry and suspension that Trek introduced last year. Updates that saw the addition of downtube storage, the head tube angle getting slacker, the seat tube steeper and the reach longer. Trek also made the suspension more progressive, and increased rear travel by 10mm to 160mm. All positive changes then. Trek Slash 9.8 suspension Trek has always been a big proponent of proprietary suspension components. As such, the RockShox Super Deluxe Ultimate shock on the Slash 9.8 XT features Trek’s ThruShaft technology and it’s the exact same shock that comes on the flagship model. This design eliminates the need for a high pressure IFP (internal floating piston) and in simple terms, this allows for lower breakaway resistance and improved sensitivity. And because the damper shaft passes straight through the shock body, it needs an extender mount and a small hole in the frame to accept the ThruShaft at bottom out. Sounds complex? Well it is, but thankfully setting up the suspension on the Slash is as easy as 1, 2, 3. Sag gradients make it simple to dial in the correct air pressure, and in the open setting the shock has three low-compression settings for fine tuning the response to pedal inputs or the style of terrain you’re riding. Also if you ever want to fit an aftermarket shock, that’s still possible as the Slash uses a 230×62.5mm metric shock size, you’ll just need different lower mounting hardware. Setting up the suspension …Continue reading »

Highs
  • Fast, fun and efficient. Tight, reactive ride. Progressive geometry. Versatile, composed. A do-it-all bike

Lows
  • XL would benefit from a steeper seat angle

Read Review

BikeRadar
Trek Slash 8 review

Apr 2021 · Robin Weaver

The Slash 8 strikes the perfect balance between a fun and lively feel, and ultimate chaos-calming composure

Highs
  • Easy to ride, very natural feeling geometry

  • Great kit for the cash

  • Easy to throw about yet still calm and stable when it needs to be

  • Seriously impressive suspension

Lows
  • Tyres aren’t the best in damp mud

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...

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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

aluminum frame

BB StandardBSA, 73mm, Threaded

Tire Clearance2.5"

ColorsLithium Grey / Dnister Black; Miami Green; Teal to Nautical Navy Fade

Fork

RockShox Lyrik Select+, DebonAir spring, Charger 2.1 RC damper, tapered steerer, 42mm 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

Stem

Size: S, M, ML, L, XL, Bontrager Elite, 35mm, 0 degree, 35mm length; Size: S, M, ML, L, XL, Bontrager Line, 35mm, Knock Block, 0 degree, 40mm length

Handlebar

Bontrager Line, alloy, 35mm, 27.5mm rise, 820mm width

Saddle

Bontrager Arvada, hollow chromoly rails, 138mm width

Seatpost

Size: S, TranzX JD-YSP39, 100mm travel, internal routing, 34.9mm; Size: M, ML, TranzX JD-YSP39, 150mm travel, internal routing, 34.9mm; Size: L, XL, TranzX JD-YSP39, 170mm travel, internal routing, 34.9mm

TypeDropper

Grips

Bontrager XR Trail Pro, alloy lock-on

Groupset
Rear Derailleur

SRAM GX Eagle

Crank

Size: S, M, ML, L, XL, SRAM X1 Eagle, DUB MTB Wide, 30T steel ring, 55mm chainline, 170mm length; Size: M, ML, L, XL, SRAM X1 Eagle, DUB, 30T steel ring, Boost (55mm chainline), 175mm length

Shifters

SRAM GX Eagle, 12 speed

Cassette

SRAM Eagle XG-1275, 10-52, 12 speed

Chain

SRAM GX Eagle, 12 speed

Brakes

SRAM Code R 4-piston hydraulic disc

TypeHydraulic Disc

Wheels
Rims

Bontrager Line Comp 30, Tubeless Ready

Front Hub

Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle

Rear Hub

Bontrager alloy, sealed bearing, 6-bolt, 108T Rapid Drive, SRAM XD driver, Boost148, 12mm thru axle

Tires

Size: S, M, ML, L, XL, Bontrager XR5 Team Issue, Tubeless Ready, aramid bead, 120 tpi, 29x2.50''; Size: S, M, ML, L, XL, Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120tpi, 29.x2.40''; Size: S, M, ML, L, XL, Bontrager XR5 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 29x2.60''

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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Last updated April 28