Slash 9.9 X01 AXS
A 29″ carbon frame full suspension enduro bike with ultra high-end components.
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Manufacturer Price
$8,499Weight | 29.1 lbs |
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Frame | Carbon |
Suspension | Full, 150 / 160mm |
Fork | RockShox Lyrik Ultimate |
Shock | RockShox Deluxe RT3 |
Wheels | 29″ Carbon |
Drivetrain | 1 × 12 Electronic |
Groupset | X01 Eagle AXS |
Brakes | Hydraulic Disc |
Seatpost | Dropper |
For This Bike
Mar 2021 · Lydia Tanner
The Trek Slash has been 29-inch-only since 2016, and the 2021 version is evidence of its head start in the big-wheel enduro category.
Superb high-speed stability
Great traction in variable terrain
Supple and generous-feeling suspension
Less maneuverable at slow speeds
A lot of bike to get back up the hill
Feb 2021 · Guy Kesteven
We took the Trek Slash 9.9 X01 to our toughest local trails to see how its new shape and unique shock translate to the real world
Phenomenal rear suspension
Easy setup
Awesome aggro geometry
Precision accuracy
High control cockpit
Internal storage
Efficient pedaling
Threaded BB
Optional steering lock
More confident with switched tires
ZEB fork requires some patience
Deserves better wheels
Short dropper on small sizes
Seriously grounded rather than playful
Dec 2020 · Mike Wirth
The new Trek Slash 9.9 X01 sees many updates making it an even more capable all-mountain, enduro mountain bike. See how it performed.
Dec 2020 · Mike Kazimer
The Slash received multiple updates for 2021, but it's still an enduro race machine at heart.
Light and stiff frame – encourages you to go fast
Great shock tune
In-frame storage
Wide range of available frame size options
Seat tube angle could still be a bit steeper
Shorter cranks and an even longer dropper post would have been nice to see
Oct 2020 · Spencer Johnson
The venerable Trek Slash is back for 2021, armed with more suspension travel than ever before. The new Trek Slash 9.9 X01 comes equipped with the ever-capable, 170-millimeter RockShox ZEB Ultimate fork and a custom, 160-millimeter RockShox Super Deluxe Ultimate shock, placing it squarely in the hard-charging enduro category. For me, one of the most welcome updates for the new Slash is the seat angle, which has been steepened to 75.6 degrees, putting the rider’s weight directly between the wheels—and making for a much more comfortable seated position while climbing. The relatively long reach of 486 millimeters, together with the mid-length chainstay of 437 millimeters, creates a bike that stays firmly planted while you sweat your way to the top of a mountain. But the most impressive feature of the new Slash is its impressively light weight—something I wouldn’t automatically expect from a bike in the longer-travel range, especially one with 29-inch wheels. The lightweight frame construction and ultra-light build of the 9.9 X01 version I tested was noticeable from the moment I started huffing up my first climb.
Sep 2020
Trek was an outlier with the previous Slash when they went all-in on enduro 29. Things have changed, but the Slash stays true to its mission: Slashing.
Sep 2020
Trek redesigns the Slash for 2021, going longer, lower and slacker to make a mean enduro machine with a few tricks up its sleeve.
Sep 2020 · Alan Muldoon
First ride review of 2021 Trek Slash 9.9. Trek’s 29in enduro trail blazer returns with more travel and a progressive makeover.
Fast and easy to ride. Revised geometry and sizing bring it bang up-to-date. Suspension set-up is straightforward and the drain port in the bottom of the down tube should stop the water pooling below the shock.
All of the cables need shortening to stop them rattling. Trek’s MinoLink is a non-feature as we never clipped a pedal even in the low setting.
Frame | OCLV Mountain Carbon main frame & stays, tapered head tube, Knock Block, Control Freak internal routing, Carbon Armor, ISCG 05, magnesium rocker link, Mino Link, ABP, Boost148, 150mm travel BB Standard: BB86/BB92, Press Fit Tire Clearance: 2.6" |
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Fork | RockShox Lyrik Ultimate, DebonAir spring, Charger 2 RC2 damper, tapered steerer, 42mm offset, Boost110, 15mm Maxle Stealth, 160mm travel Travel: 160mm Spring Type: Air |
Shock | RockShox Deluxe RT3, DebonAir spring, RE:aktiv with Thru Shaft 3-position damper, tuned by Trek Suspension Lab, 230x57.5mm Travel: 150mm Spring Type: Air |
Bottom Bracket | SRAM DUB, 92mm, PressFit |
Headset | Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom |
Stem | Bontrager Line Pro, 35mm, Knock Block, 0 degree, 50mm length |
Handlebar | Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 820mm width |
Saddle | Bontrager Arvada, austenite rails, 138mm width |
Seatpost | Size: S, RockShox Reverb AXS, 100mm travel, wireless, 31.6mm, 340mm length; Size: M, RockShox Reverb AXS, 125mm travel, wireless, 31.6mm, 390mm length; Size: XL, RockShox Reverb AXS, 170mm travel, wireless, 31.6mm, 480mm length; Size: L, RockShox Reverb AXS, 150mm travel, wireless, 31.6mm, 440mm length Type: Dropper |
Grips | Bontrager XR Trail Elite, alloy lock-on |
Rear Derailleur | SRAM X01 Eagle AXS |
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Crank | Size: S, SRAM X01 Eagle AXS Carbon, DUB, 32T alloy ring, Boost (52mm chainline), 170mm length; Size: M, L, XL, SRAM X01 Eagle AXS Carbon, DUB, 32T alloy ring, Boost (52mm chainline), 175mm length |
Shifters | SRAM Eagle AXS, wireless, 12-speed |
Cassette | SRAM XG-1295 Eagle, 10-50, 12 speed |
Chain | SRAM XX1 Eagle, 12 speed |
Brakes | Shimano XT M8120 4-piston hydraulic disc Type: Hydraulic Disc |
Rims | Front: Bontrager Line Carbon 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, Rear: Bontrager Line Carbon 30, Tubeless Ready, 54T Rapid Drive, 6-bolt, SRAM XD driver, Boost148, 12mm thru axle |
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Tires | Size: S, M, L, XL, Bontrager SE4 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 60 tpi, 29x2.40''; Size: S, M, L, XL, Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewall, aramid bead, 60 tpi, 29x2.60'' |
Disc Rotors | Size: S, M, L, XL, Shimano RT76, 180mm, 6-bolt; Size: S, M, L, XL, Shimano RT76, 203mm, 6-bolt |
Last updated July 7
Not listed for 1,391 days