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2025 Trek

Slash 9.8 XT Gen 6

A 27.5″ / 29″ carbon frame full suspension enduro bike with high-end components.
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Manufacturer Price

$7,149
Weight34.8 lbs  
FrameCarbon
SuspensionFull, 170 / 170mm
ForkRockShox ZEB Select+
ShockRockShox Vivid Select+
Wheels27.5″ / 29″ Aluminum
Drivetrain1 × 12
GroupsetXT
BrakesShimano XT Hydraulic Disc
SeatpostDropper
View on trekbikes.comLearn about Trek
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Slash 9.8 XT Gen 6
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)

25 mph

Slash 9.8 XT Gen 6

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"

5'1" – 5'6"

17.5"

5'4" – 5'10"

18.5"

5'8" – 5'11"

19.5"

5'9" – 6'3"

21.5"

6'1" – 6'5"

Rider Fit Notes

None yet.

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Reviews

Summary

The Trek Slash enduro bike is celebrated for its exceptional downhill performance, offering a smooth, stable, and intuitive ride that excels in rough terrain. Its high-pivot suspension system is a standout feature, providing excellent traction and a plush ride quality that handles big hits and awkward compressions with ease. Despite its weight, the Slash climbs better than expected, though it may not be the most fun on technical climbs. The bike's geometry and handling are praised for balancing stability with maneuverability, making it a versatile choice for enduro racing, backcountry exploration, or park riding. However, some reviews note issues with stock components, such as the Bontrager wheelset and tires, and the complexity of the drivetrain system, which can introduce potential maintenance challenges.

Pros
  • Exceptional downhill performance

  • Smooth and stable ride quality

  • High-pivot suspension for excellent traction

  • Balanced geometry and intuitive handling

  • Versatile for various riding styles

Cons
  • Challenging on technical climbs

  • Issues with stock Bontrager wheelset and tires

  • Drivetrain complexity and potential maintenance issues

  • Not the lightest bike in its category

  • Some components may require upgrading for optimal performance

Key Quotes
The Slash is still the bike I want to be on for big moves and unfamiliar trails.
BIKE Magazine logoBIKE Magazine
The new Slash is buttery smooth, yet offers a surprisingly poppy ride and still climbs as aggressively as their ABP bikes.
Bikerumor logoBikerumor
The Trek Slash is an insanely good descending bike.
Flow Mountain Bike logoFlow Mountain Bike
The Slash+ is the first eMTB I've ridden that regularly tempts me away from my pedal bikes, thanks to its massive battery range and confidence-inspiring downhill performance.
Pinkbike

Feedback?

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Pinkbike
Review: Trek's 2025 Slash+ 9.9 is a Ridiculously Good Descender

Jan 2025 · Dario DiGiulio

The Slash+ is the first eMTB I've ridden that regularly tempts me away from my pedal bikes, thanks to its massive battery range and confidence-inspiring downhill performance.

Highs
  • Top-notch descending performance

  • Best in class battery range

  • Could be your only bike

Lows
  • Limited size range

  • Build kits should be better for the price

Read Review

NSMB
The new Trek Slash+

Jul 2024

Trek's well-loved enduro bike gets a motor. The Slash+ now has a TQ HRP50 motor and a 560Wh battery.

Highs
  • Natural power delivery from TQ HPR50 motor

  • Quiet motor operation

  • Excellent high pivot suspension design

  • Good geometry with size-specific chainstays

  • Powerful Maven brakes

  • Nice pedaling dynamics

  • Versatile for different terrain types

Lows
  • Bontrager SE5 rear tire prone to flats

  • Bontrager SE5 tire poor in wet conditions

  • Reverb AXS dropper only 170mm drop

  • Bontrager rim strip makes tire changes hard

  • Bits tool rattles and is hard to remove

  • Bontrager SE5 tire sidewall weakness

  • High price

Read Review

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.

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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

Geometry
Specs
Build
Frame

OCLV Mountain Carbon, high main pivot, idler pulley, internal storage, angle-adjust headset, adjustable leverage rate, integrated frame protection, internal routing, alloy rocker link, ISCG 05, Active Braking Pivot, UDH, 148x12mm thru axle, 170mm travel

BB StandardBSA, 73mm, Threaded

Hanger StandardUDH

Tire Clearance2.5"

ColorPurple Abyss

Fork

RockShox ZEB Select+, DebonAir spring, Charger 3.1 RC2 damper, tapered steerer, 44mm offset, Boost110, Maxle Stealth, 170mm travel

Travel170mm

Spring TypeAir

Shock

RockShox Vivid Select+, 230mm x 65mm

Travel170mm

Bottom Bracket

Shimano BB-MT501 BSA

Headset

Integrated cartridge bearing, 1-1/8'' top, 1.5'' bottom, angle adjust cup compatible

Stem

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

Handlebar

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

Saddle

Verse Short Comp, steel rails, 145mm width

Seatpost

Bontrager Line Dropper, 100mm travel, MaxFlow, internal routing, 34.9mm, 310mm length - S : Bontrager Line Dropper, 100mm travel, MaxFlow, internal routing, 34.9mm, 310mm length; M, ML, L, XL: Bontrager Line Dropper, 150mm travel, MaxFlow, internal routing, 34.9mm, 410mm length

TypeDropper

Grips

Bontrager XR Trail Pro, alloy lock-on

Groupset
Rear Derailleur

Shimano XT M8100, long cage

Crank

Shimano XT M8120, 30T alloy ring, 55mm chainline, 165mm length

Shifters

Shimano XT M8100, 12 speed

Cassette

Shimano XT M8100, 10-51, 12 speed

Chain

Shimano Ultegra/XT M8100

Brakes

Shimano XT M8120 4-piston hydraulic disc

TypeShimano XT Hydraulic Disc

Wheels
Rims

Front: Bontrager Line Comp 30 TLR 6-bolt Disc, Boost, Black spokes and nipples - S : Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 27.5''; M, ML, L, XL: Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 29'', Rear: Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12mm thru axle, 27.5''

Tires

Bontrager SE5 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 27.5x2.50'' - S , M, ML, L, XL: Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 27.5x2.50''; M, ML, L, XL: Bontrager SE6 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29x2.50''

Disc Rotors

Shimano RT86, 6-bolt, 203mm

Accessories
Fenders

Trek 27.5" custom fender

Rider Notes
Riders Also Viewed

First added August 24

Last updated May 9

Not listed for 44 days