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2015 Trek

Slash 9 27.5

A 27.5″ aluminum frame full suspension enduro bike with ultra high-end components.
Compare the full range

FrameAluminum
SuspensionFull, 160 / 160mm
Wheels27.5″ Aluminum
Drivetrain1 × 11
GroupsetX1
BrakesShimano XT Hydraulic Disc
SeatpostDropper
Learn about Trek
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Insights
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 27.5

26 mph

Similar Bikes

Highest gear

(descending)

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
  • 5'10", size 18.5", Just right
Reviews

Summary

The Trek Slash is a highly capable enduro bike, praised for its finely tuned suspension system, excellent traction, and versatile performance across various terrains. Its ABP suspension and RockShox Monarch Plus DebonAir shock deliver a smooth, bottomless feel, making it a standout for descending. While it excels in handling and comfort, some reviews note the lack of a lock-out feature and occasional pedal bob.

Pros
  • Finely tuned suspension system

  • Excellent traction and handling

  • Versatile performance across terrains

  • ABP suspension for smooth braking

  • RockShox Monarch Plus DebonAir shock

Cons
  • Lack of lock-out feature

  • Occasional pedal bob

  • Some models lack high-end components

Key Quotes
The Slash 8 doesn’t have a weak part on it.
BIKE Magazine logoBIKE Magazine
Grip it and rip it. Or don't. Either way, you'll love the ride.
Bicycling
Trek’s cheapest trail/enduro bike proves that if you get the basics right, you don’t need a ton of bling to build an enjoyable and impressively capable ride.
BikeRadar logoBikeRadar

Feedback?

View all reviews

Dirt Mountainbike
Trek launch the almighty Slash 29

Jul 2016 · Sjones

Flagship enduro bike gets 29" wheels

Read Review

Enduro Mountainbike Magazine
Trek Slash 9 27.5 2015 Review

Dec 2015 · Trev Worsey

We head to the Scottish Highlands to test the Trek Slash 9 to it's limits.

Read Review

Mountain Bike Action
Bike Test: Trek Slash 9.8

Aug 2015 · McCoy

Long story short, this bike rips

Read Review

Bicycling
Tested: Trek Slash 9.8 27.5

Jun 2015 · Bicycling Staff

A carbon-frame, 27.5 enduro rig with 160mm of shockingly versatile suspension

Read Review

BIKE Magazine
Preview: Trek Slash 8 27.5

Jan 2015

Trek's Remedy might be better known, but the Slash is the real bruiser in Trek's all-mountain/enduro line up. The Trek Slash 8 27.5 might just be the best buy in the 2015 Slash line.

Read Review

Flow Mountain Bike
So Enduro: Trek Slash 9.8 Review

Jan 2015

Changing the recipe can be a disaster for an established brand – remember what happened to VB when they dropped the alcohol volume, and seriously, why did Vegemite ever make Cheeseymite anyway? Trek knows this well. After countless design variants in the early 2000s, half a dozen years ago they hit a winning formula with …

Highs
  • So enduro.

  • Grips like a scared cat.

  • Wide rims.

  • Ideal spec.

Lows
  • Wheels are quite weighty.

Read Review

MTB Mag
[Tested] Trek Slash 9.8 Carbon 27.5"

Nov 2014 · Ian Collins

Photos, Riding and Writing : Ian Collins We have to admit – it’s hard to contain our excitement over the massive improvements that the 160mm, “do it all/Jack of all trades” category has seen in the last couple of years. Although most of you are quite sick of hearing the “E-word” by now, we must give credit where it’s due and tip our hats to it’s rise in popularity. Because of the recent explosion of enduro racing, manufacturers have been pushed to concentrate their R&D efforts on the long travel segment of the trail bike market. When bicycle companies push

Read Review

MTBR
First Look: 2015 Trek Slash Carbon 27.5

Aug 2014 · Francis Cebedo

The Trek Slash line expands its versatile and capable All Mountain bruiser with carbon frames and innovative spec. - Mtbr.com

Read Review

Specs
Build
Frame

Alpha Platinum Aluminum, ABP Convert, Full Floater, E2 tapered head tube, press fit BB, internal derailleur & dropper post routing, ISCG mount, magnesium EVO Link, Mino Link, 160mm travel

Headset

FSA NO.57E, E2, sealed bearings

Stem

Bontrager Rhythm Pro, 31.8mm, 0 degree

Handlebar

Bontrager Rhythm Elite Riser, 31.8mm, 15mm rise

Saddle

Bontrager Evoke 2, chromoly rails

Seatpost

RockShox Reverb Stealth, 2-bolt head, 31.6mm, zero offset

TypeDropper

Groupset
Rear Derailleur

SRAM X1, Type 2

Crank

SRAM X1 1400 X-Sync, 32T

Shifters

SRAM X1, 11 speed

Cassette

SRAM XG-1180, 10-42, 11 speed

Brakes

Shimano XT hydraulic disc

TypeShimano XT Hydraulic Disc

Wheels
Rims

Bontrager Maverick Pro Tubeless Ready w/TLR strips, Stacked Lacing, 142x12 rear, 15mm front

Tires

Bontrager XR4 Team Issue, Tubeless Ready, 27.5x2.35"

Rider Notes
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First added June 29

Last updated June 29

Not listed for 3,256 days