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2023 Trek

Slash 9.8 XT Gen 5

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

$6,799
Weight32.4 lbs  
FrameCarbon
SuspensionFull, 160 / 170mm
ForkRockShox ZEB Select+
ShockRockShox Super Deluxe Select+
Wheels29″ Carbon
Drivetrain1 × 12
GroupsetXT
BrakesShimano XT Hydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Slash 9.8 XT Gen 5
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 9.8 XT Gen 5

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.

Compare the full Slash model range

View Comparison
Sizing
15.5"

5'0" – 5'7"

17.5"

5'5" – 5'11"

18.5"

5'9" – 6'3"

19.5"

5'9" – 6'3"

21.5"

6'1" – 6'6"

🐐 Estimated

Rider Fit Notes

None yet.

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Reviews

Summary

The Trek Slash is a high-pivot, 170mm-travel enduro bike that balances efficiency with downhill prowess. It excels in high-speed flow trails and rough terrain, offering stable and predictable handling, though some riders may find the suspension setup requires fine-tuning. The bike's geometry and kinematics provide lots of options, making it versatile for various riding styles.

Pros
  • Balances stability and agile handling

  • High pivot with idlers for improved efficiency

  • Excels in challenging terrain

  • Composed, capable, and predictable suspension

  • Well sorted in-frame storage

Cons
  • Suspension setup requires fine-tuning

  • Chassis may be too stiff for some

  • Stock chainstay protector did very little to manage noise

  • One-piece carbon bar/stem combo transmits quite a bit of feedback

  • RockShox AXS Reverb Seatpost prone to developing sag

Key Quotes
Trek has done a praiseworthy job of making the high-pivot, 170mm-travel Slash remarkably efficient when it comes to pedalling.
BikeRadar logoBikeRadar
It's skewed deeply to the end of gnarly trails and steep lines, and loves to eat up the rough stuff.
NSMB logoNSMB
This bike can happily mow through chunky sections of trail, but is equally capable feeling when things get tight and slow.
Pinkbike

Feedback?

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Enduro Mountainbike Magazine
Trek Slash 9.8 XT – In our big 2024 enduro comparison test

Jul 2024 · Benedikt Schmidt

How did the Trek Slash 9.8 XT fare against the competition in our big 2024 enduro comparison test? Read the full review to find out!

Highs
  • Excellent composure on the trail

  • Clever detail solutions

  • Intuitive handling

Lows
  • Not very agile

  • Loud downhill

Read Review

Bike Perfect
Trek Slash 9.9 Gen 6 review – a high pivot and idler suspension design, plus a completely new chassis

Jun 2024 · Mick Kirkman

With 170mm travel and a complex high pivot layout with upper idler wheel and lower guide, Trek’s new Slash prioritizes bump swallowing and DH capability without sacrificing the ability to be a sorted enduro all-rounder

Highs
  • Smooth, calm and balanced ride

  • Whether pedaling or pushing into the suspension for extra terrain speed, the Slash offers great support

  • Big idler and guide wheels pedal really smoothly

  • Nimble and maneuverable

  • Great chassis feel and tidy finish and details with plenty of adjustability

  • Very quiet and well protected

Lows
  • High RRP

  • Drivetrain complexity introduces some potential issues

  • Own brand Bontrager wheels and tires wouldn’t be my choice

  • Doesn’t roll as fast as some 29-er enduro bikes

  • Reverb dropper won’t be long enough for taller riders

  • No classic, completely bump-erasing, glued-to-the-floor feel of a high pivot

Read Review

Mountain Bike Action
TREK SLASH GEN 6 REVIEW - A GENERATIONALLY DEFINED TWO-WHEELED ENDURO MARVEL - Mountain Bike Action Magazine

May 2024 · Nelson

Our feelings about the Gen 6 Slash may be mixed, but the good outweighs the bad, and we were able to get past the inconveniences.

Read Review

BIKE Magazine
Tested: Trek Slash 9 Gen 6

Mar 2024

A great excuse to make poor choices

Read Review

Loam Wolf
Review: Trek Slash 9.9 X0 Gen 6

Jan 2024 · Drew Rohde

If you prioritize DH capabilities over all else and want a bike that will allow you to ride faster and send it deeper, the Trek Slash is a serious contender.

Read Review

Bikerumor
The New Trek Slash 9.9 Plows As Expected, But Pedals and Pops Too!

Jan 2024 · Steve Fisher

Trek gives the 2024 Slash a high-pivot linkage with 170mm travel and mixed wheels, making a capable and well-rounded long-travel bike.

Read Review

Flow Mountain Bike
2024 Trek Slash Review | Is this high pivot enduro bike fashionably late, or just late to the party?

Jan 2024

The 2024 Trek Slash looks nothing like the old one. So how do all the changes play out on the trail? Read on for our Trek Slash review.

Highs
  • Incredible composure on the rowdiest terrain

  • Plush & well-controlled suspension

  • Surprisingly efficient pedalling performance

  • Mullet setup injects welcome agility

  • Loads of in-built adjustability

Lows
  • Extra pulleys add complexity & noise

  • Tyres too flimsy for the application

  • Downtube storage is on the small side

  • Chainstay armour lacks damping

  • GX derailleur clutch failure

Read Review

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

Geometry
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; 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 Juniper; Matte Deep Smoke

Fork

RockShox ZEB Select+, DebonAir spring, Charger 3 RC2 damper, tapered steerer, 44mm offset, Boost110, Maxle Stealth, 170mm travel

Travel170mm

Spring TypeAir

Shock

RockShox Super Deluxe Select+ RT, 230mm x 62.5mm

Travel160mm

Bottom Bracket

Shimano BB-MT501 BSA

Headset

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

Stem

Bontrager Line Pro, 35mm, Blendr compatible, 0 degree, 35mm length

Handlebar

Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 820mm width

Saddle

Bontrager Arvada, austenite rails, 138mm width

Seatpost

Size: S, Bontrager Line Elite Dropper, 100mm travel, MaxFlow, internal routing, 34.9mm, 345mm length; Size: M, ML, Bontrager Line Elite Dropper, 150mm travel, MaxFlow, internal routing, 34.9mm, 440mm length; Size: L, Bontrager Line Elite Dropper, 170mm travel, MaxFlow, internal routing, 34.9mm, 485mm length; Size: XL, Bontrager Line Elite Dropper, 200mm travel, MaxFlow, internal routing, 34.9mm, 550mm length

TypeDropper

Grips

Bontrager XR Trail Pro, alloy lock-on

Groupset
Rear Derailleur

Shimano XT M8100, long cage

Crank

Shimano XT M8120, 30T, 55mm chainline, 170mm length

Shifters

Shimano XT M8100, 12 speed

Cassette

Shimano XT M8100, 10-51, 12 speed

Chain

Shimano Ultegra/XT M8100, 12 speed

Brakes

Shimano XT M8120 4-piston hydraulic disc

TypeShimano XT Hydraulic Disc

Wheels
Rims

Bontrager Line Elite 30, Tubeless Ready

Front Hub

Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm 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, Shimano RT76, 6-bolt, 180mm; Size: S, M, ML, L, XL, Shimano RT76, 6-bolt, 203mm

Rider Notes
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First added August 28

Last updated August 16

Not listed for 301 days