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2026 Trek

Slash 8 Gen 6

A 27.5″ / 29″ aluminum frame full suspension enduro bike with upper mid-range components.
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Manufacturer Price

$4,399
Weight36.8 lbs  
FrameAluminum
SuspensionFull, 170 / 170mm
ForkFox Rhythm Float 36
ShockFox Float X Performance
Wheels27.5″ / 29″ Aluminum
Drivetrain1 × 12
GroupsetXT, Deore
BrakesShimano Deore Hydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Slash 8 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 8 Gen 6

26 mph

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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

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Price History
Reviews

Summary

The Trek Slash enduro bike is celebrated for its exceptional downhill performance, offering a smooth, balanced ride that excels in rough terrain. Its high-pivot suspension system is a standout feature, providing excellent traction and a plush feel over bumps, though it may not be the most efficient climber. The bike's geometry and handling are praised for being both stable and maneuverable, making it a versatile choice for enduro racing and aggressive trail riding. However, some reviews note the bike's weight and the performance of certain stock components, such as the Bontrager wheels and tires, as areas for improvement. Despite these drawbacks, the Slash is often described as a confidence-inspiring bike that bridges the gap between downhill and trail riding capabilities.

Pros
  • Exceptional downhill performance

  • High-pivot suspension system for excellent traction and plush ride

  • Stable and maneuverable geometry

  • Versatile for enduro racing and aggressive trail riding

  • Confidence-inspiring ride quality

Cons
  • Not the lightest bike, affecting climbing efficiency

  • Stock Bontrager wheels and tires underperform

  • Some drivetrain and component issues reported

  • High price point for top models

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
  • TQ motor is quiet and natural-feeling

  • High-pivot suspension provides great traction and control

  • Climbs well for a long-travel eMTB

  • Geometry and suspension adjustments allow customization

  • SRAM Maven brakes offer strong power

Lows
  • Bontrager SE5 rear tire prone to flats and poor wet weather traction

  • AXS Reverb dropper post only 170mm drop, outdated

  • Bits tool rattles and hard to remove

  • Bontrager SE6/SE5 tires lack grip in moisture

  • Rim strip makes tire changes difficult

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

MBR
I loved the ride quality of Trek's latest high-pivot Slash, but a bent idler means I'd have to think long and hard about buying one - MBR

Jun 2024 · Mick Kirkman

With high-pivot suspension, mullet wheels and multi-adjustable frame, the latest Trek Slash is about as modern a bike as you’ll find in 2024. It’s more than just trendy though, this sixth incarnation of the famous enduro sled uses tech borrowed from Trek’s Session DH bike to take on enduro terrain, meaning it should come alive when the trail points down. Trek’s long travel enduro bike has been around for over a decade and always been closely related to the Session, but this latest iteration is the most radical yet and even more DH-optimised. The new model gets more travel and now boasts 170mm travel at both ends, which should stand it in good stead against the best enduro bikes on the market.  Trek Slash need to know Trek Slash Gen 6 switches to a high-pivot suspension design with upper chain idler and lower guide 170mm RockShox Ultimate suspension with Zeb fork and Vivid Air shock Full carbon frame with downtube storage and multi-adjustability SRAM electronics including T-Type transmission and Reverb AXS Mullet wheels with own brand carbon rims and Bontrager tyres Trek’s DH DNA The burlier outlook, extra complexity and additional 10mm of travel bring with it extra heft, which is presumably why Trek still offers the Gen 5 Slash with 29in wheels as a more traditional enduro bike, one that’s lighter and simpler. However embedded Trek’s DH DNA is though, to be an effective enduro bike the new Slash still has to pedal and climb efficiently and cope with longer rides. The brand’s engineers have built that capability into the suspension and geometry, and also squeezed in a downtube lunchbox for spares and a BITS steerer tube tool to keep you going, if slashing turns turns into crashing berms. Typically for one of the bigger bike brands, there is a huge range of models and frames. It comes in full carbon fibre, like this blinged-out 9.9 version that’s the best part of ten grand, as well as multiple aluminium frames starting at the much more affordable price of just over 4k. Trek’s high pivot idler design While the Slash has changed year on year, each generation has proven itself to roll smoothly and possess good tracking under braking. In fact, that’s my impression of a lot of the brand’s bikes, including the Trek Fuel EX, which easily earns its place as one of the best trail bikes around. So the big question: why has Trek bothered adding the extra complexity and drivetrain complications of a high-pivot suspension design and idler, when the Slash rolls so well anyway? Simple really, the brand was after the rearward axle path engineers covet so badly, which lets the back wheel can move in the same direction as impact forces while riding along. In theory, this translates to more momentum in rough terrain, fewer hook-ups on square-edged hits and a bike that holds pace and stabilises the rider better in the roughest terrain. With the new Slash having the upper idler mounted to the …Continue reading »

Highs
  • • Perfectly tuned suspension and pedalling performance

  • • Stiff chassis never feels harsh and twangy

  • • Much livelier and more reactive than you’d expect

  • • Consistent and neutral ride feel at all trail gradients and speeds

  • • Rear end easily be set up and adjusted to taste

  • • Frame adjustability and finish is top drawer

  • • Very quiet and well protected

Lows
  • • Upper idler and lower guide design brings potential reliability and durability issues

  • • Own brand parts like Bontrager wheels and tyres are not to my tastes (although carbon wheels get a two-year warranty)

  • • Very expensive

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

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

Geometry
Specs
Build
Frame

Alpha Platinum Aluminum, 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"

ColorsDark Web/ Sedona Red; Marianas Blue

Fork

Fox Rhythm 36, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt-X axle, 170mm travel

Travel170mm

Spring TypeAir

Shock

Fox Performance Float X, 2-position damper, 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 Elite, 35mm, 0 degree, 35mm length

Handlebar

Bontrager Handlebar Line, 35x780mm, 27.5mm Rise - S , M, ML, L, XL: Bontrager Line, alloy, 35mm, 27.5mm rise, 780mm width; S , M, ML, L, XL: Bontrager Line, alloy, 35mm, 27.5mm rise, 820mm width

Saddle

Bontrager Verse P3, chromoly rails

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, 170mm travel, MaxFlow, internal routing, 34.9mm, 450mm length

TypeDropper

Grips

Trek Line Comp, nylon lock-on - S , M, ML, L, XL: Trek Line Comp, nylon lock-on; S , M, ML, L, XL: Bontrager XR Trail Pro, alloy lock-on

Groupset
Rear Derailleur

Shimano XT M8100, long cage

Crank

Shimano Deore M6120, 30T ring, 55mm chainline, 165mm length

Shifters

Shimano XT M8100, 12 speed

Cassette

Shimano XT M8100, 10-51, 12 speed

Chain

Shimano SLX M7100, 12 speed

Brakes

Shimano 4-piston hydraulic disc, M6100 lever, M6120 caliper

TypeShimano Deore Hydraulic Disc

Wheels
Rims

Front: Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 27.5'' - 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, Shimano Micro Spline freehub, Boost148, 12mm thru axle, 27.5'' - S , M, ML, L, XL: Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano Micro Spline freehub, Boost148, 12mm thru axle, 27.5''; S , M, ML, L, XL: Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12mm thru axle, 27.5''

Tires

Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 27.5x2.50'' - S , M, ML, L, XL: Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 27.5x2.50''; S , M, ML, L, XL: Bontrager XR5 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 60 tpi, 27.5x2.50''; M, ML, L, XL: Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.50''; M, ML, L, XL: Bontrager XR5 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 60 tpi, 29x2.50''

Disc Rotors

Shimano RT66, 6-bolt, 203mm

Accessories
Fenders

Trek 27.5" custom fender

Rider Notes
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First added December 24

Last updated June 7