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2018 Trek

Slash 9.8

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

$5,499
Weight31.0 lbs  
FrameCarbon
SuspensionFull, 150 / 160mm
ForkFox Performance Float 36
ShockRockShox Deluxe RT3
Wheels29″ Carbon
Drivetrain1 × 12
GroupsetGX Eagle
BrakesSRAM Guide RS Hydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Slash 9.8
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)

28 mph

Slash 9.8

26 mph

Similar Bikes

Highest gear

(descending)

Sizing
15.5"

5'0" – 5'6"

17.5"

5'6" – 6'1"

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 highly capable enduro bike, praised for its aggressive geometry, efficient suspension, and versatility across various terrains. It offers a mix of carbon and aluminum frame options, with advanced features like the Mino Link adjustable geometry and Knock Block headset protection. While it excels in downhill performance and rider confidence, some reviews note setup challenges and component limitations.

Pros
  • Aggressive geometry suitable for enduro racing

  • Efficient suspension with Active Braking Pivot

  • Versatile for various terrains and riding styles

  • Advanced features like Mino Link and Knock Block

  • Carbon frame options for reduced weight

Cons
  • Setup can be tricky for optimal performance

  • Some component limitations noted in lower-end builds

  • Bontrager tyres and dropper post receive mixed feedback

  • Premium pricing for higher-end models

Key Quotes
The Slash is genuinely DH bike fast in how it carries speed through roots, rocks, wheel-eating holes and stepdowns.
BikeRadar logoBikeRadar
Prepare yourself to be going absolutely bonkers on the trail on one of these bikes
Flow Mountain Bike logoFlow Mountain Bike
If you get your kicks from heading downhill over rough terrain as quickly as possible, then the Trek Slash simply has to be at the top of your shopping list.
Singletrack World logoSingletrack World

Feedback?

View all reviews

BIKE Magazine
Trek's Slash Becomes Affordable

Jul 2018

Trek takes its flagship long-travel Slash and makes it more affordable

Read Review

Revolution Mountain Bike Magazine
[R]eviewed: Trek Slash 9.7

Mar 2018 · March 16, 2018

Like it or not punks, big wheeling is what’s hot right now! We have been lucky enough to have our hands on a number of new pushys, including a brand-new 2018 Trek Slash 9.7 for review. With a huge season within the world of downhill and Enduro both domestically and internationally, you cannot deny 29’ inch wheels are making their mark on disciplines of MTB that years ago we would’ve thought may have stayed committed to the traditional 26’ inch […]

Read Review

Vital MTB
2018 Trek Slash 9.8

Mar 2018 · Bturman jeff.brines

The Slash set the new benchmark for long-travel 29ers not long ago, and 2018's version attempts to meet the same standard. This one is stiff, light, and an excellent option for long adventures.

Read Review

Enduro Mountainbike Magazine
Trek Slash 9.8 Review

Feb 2018 · Christoph Bayer

The biggest innovation on the Trek Slash is hidden inconspicuously inside the shock. Trek calls it Thru Shaft, and it’s the latest addition to Trek’s suspension technology. Although the technology is not entirely new, it has never been properly implemented on a mountain bike. For an overview of the test fleet head to the group […]

Read Review

Singletrack World
Review: 2018 Trek Slash 9.7 - it flatters you into thinking you’re a riding god!

Feb 2018 · James Vincent

If you get your kicks from heading downhill over rough terrain as quickly as possible, then the Trek Slash simply has to be at the top of your shopping list.

Read Review

Dirt Mountainbike
TREK SLASH 9.8 29 - DIRTY DOZEN

Jan 2018 · Ieuan Williams

Our former benchmark 29er under scrutiny

Read Review

BikeRadar
Trek Slash 9.9 29 Race Shop Limited review

Aug 2017 · Josh Patterson

Phenomenally stiff, impeccably controlled, hyper-fast enduro racer that’ll Slash your previous times. Buy if you want maximum speed and accuracy on the roughest, fastest trails

Highs
  • Superbly shaped, jaw-droppingly stiff full-carbon frameset

  • Ultra-sensitive, maximum grip but HD communicative and immaculately poised Fox suspension

  • Mostly excellent wheel, tyre and component pack

Lows
  • TALAS fork adds cost and drag

  • 125mm Bontrager dropper is short and slow

Read Review

Mountain Bike Action
TREK SLASH 9.8 29 TEST

Jun 2017 · MBA Action

Versatility at its finest

Read Review

Geometry
Specs
Build
Frame

OCLV Mountain Carbon main frame & seatstay, 1x-specific alloy chainstay, ABP, Boost148, Knock Block, EVO link, E2 tapered head tube, Mino Link, Control Freak internal routing, Carbon Armor, PF92, ISCG 05, G2 Geometry, 150mm travel

BB StandardBB86/BB92, Press Fit

Fork

Fox Performance 36 Float, GRIP 3-position damper, E2 tapered steerer, Boost110, G2 Geometry w/51mm offset, 160mm travel

Travel160mm

Spring TypeAir

Shock

RockShox Deluxe RT3, RE:aktiv with Thru Shaft 3-position damper, tuned by Trek Suspension Lab, 230x57.5mm

Travel150mm

Bottom Bracket

PF92

Headset

Knock Block Integrated, sealed cartridge bearing, 1-1/8˝ top, 1.5˝ bottom

Stem

Bontrager Line Pro, Knock Block, 35mm, 0 degree, 50mm length

Handlebar

Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 780mm width

Saddle

Bontrager Evoke 2, chromoly rails

Seatpost

Bontrager Drop Line, internal routing, 31.6mm (15.5: 100mm / 17.5 & 18.5: 125mm / 19.5 & 21.5: 150mm)

TypeDropper

Pedals

Not included

Grips

Bontrager Rhythm, dual lock-on

Groupset
Rear Derailleur

SRAM GX Eagle, Roller Bearing Clutch

Crank

SRAM Descendant 7k Eagle, 32T Direct Mount X-Sync w/MRP AMG V2 chainguide

Shifters

SRAM GX Eagle, 12 speed

Cassette

SRAM GX Eagle, 10-50, 12 speed

Chain

SRAM GX Eagle

Brakes

SRAM Guide RS hydraulic disc

TypeSRAM Guide RS Hydraulic Disc

Wheels
Rims

Bontrager Line Elite 30, Tubeless Ready, 108T Rapid Drive, Boost110 front, Boost148 rear, tubeless strips included, valves sold separately

Tires

Bontrager SE4 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 29x2.40˝

Rider Notes
Riders Also Viewed

First added July 23

Last updated February 15

Not listed for 3,025 days