Trek Slash+
90/100
BikeRide Score
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Facts
Release Year
Brand
Charge Time
3 Hours
Maximum Range
45 Miles
Top Speed
20 mph
Watts
250 W
Torque
50 Nm
Volts and Amp Hours
50.26V 11.14Ah
Class
Drive
Number of Gears
Gearing Type
Weight
44.94, 46.04 lb
Suspension
Brake Type
Frame Material
Summary of Reviews
We have read all expert and user reviews on the Trek Slash+. In summary, this is what cyclists think.
14 reasons to buy
- Trek's Slash+ is available in two builds: the mid-range 9.7 with Shimano SLX/XT and the high-end 9.9 with SRAM X0 T-Type.
- Reviewers relish the smooth and natural-feeling pedal assist from the compact TQ-HPR50 motor.
- The Slash+ has a flip-chip to adjust leverage rate. Reviewers prefer the less progressive stock setting, saying the suspension platform is already supportive enough.
- Experts relish the bike's ability to fly off jumps and handle hits with composure while retaining speed.
- Reviewers praise the massive support from the highly adjustable RockShox Vivid Ultimate shock and ZEB Ultimate fork (Slash+ 9.9).
- The range from the small battery impresses. A 143lb reviewer gets between 27.3 and 34.2 miles with 3,937 to 4,921 feet of elevation gain in various range tests.
- Experts feel confident blasting down chunky downhill runs thanks to the rear suspension and balanced geometry.
- The Slash+ easily maintains traction and stability through technical uphill sections.
- Testers commend the flawless performance of SRAM's X0 Eagle AXS drivetrain and powerful Maven Silver brakes (Slash+ 9.9).
- Experts appreciate the increased maneuverability and responsiveness from the mullet 27.5" rear wheel on sizes M to XL.
- The easy-to-read top tube display is discreet but informative.
- The battery is removable, an uncommon feature in the lightweight e-MTB category.
- This bike is shipped already set up tubeless.
- The Slash+ frame accepts a 190mm fork.
10 reasons not to buy
- Most reviewers recommend immediately replacing the weak Bontrager tires on both builds.
- Testers are disappointed by the meager travel of the stock dropper seatpost (170mm in sizes M to XL).
- Reviewers agree the motor is underpowered on steep climbs.
- Three experts hear unidentified rattles or creaks. One says it's coming from inside the down tube.
- Two testers complain the Slash 9.9's BITS steerer tube-integrated multi-tool rattles and is hard to remove.
- Reviewers report chain slap caused by the pulley system.
- Experts struggle to change tires on the Bontrager Line Pro 30 carbon rims (9.9), blaming the thick rim tape.
- A reviewer finds the Slash+ 9.7’s FOX Rhythm 38 suspension fork lacks adjustment and struggles to keep up with the strong Performance Float X shock.
- The head tube angle can be adjusted up or down by one degree with headset cups, but they cost extra.
- A test bike’s battery fails and requires replacement.
Bottom line
Trek's Slash+ is a lightweight enduro e-MTB with a TQ-HPR50 motor and 560Wh battery. It's available in two builds: Slash+ 9.7 with Shimano and FOX or the higher-end 9.9 with SRAM and RockShox. Experts relish the bike's downhill performance, highlighting the balanced yet aggressive geometry and supportive suspension platform. The traction and stability on climbs impress, but steep gradients are a challenge due to the weak motor. The range and smooth pedal assist earn praise, but noisy bikes, poor tires, and meager dropper travel disappoint. While experts consider the Slash+ a solid performer, they question the value at this price.
Expert Reviews
86/100 based on 3 rated expert reviewsReview: Trek’s 2025 Slash+ 9.9 Is a Ridiculously Good Descender
2025 Trek Slash+ Review | Subtle Motor, Outrageous Suspension Performance
Review: Trek Slash+ 9.7 SLX/XT Electric Mountain Bike
Trek Slash+
2024 E-MTB Lite Group Review Trek Slash+ 9.9 X0 AXS Review
Trek Slash+ 2025 Review | An E-Bike in Disguise?
The New Trek Slash+
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2025 Trek Slash+ on Review – A New Enduro E-MTB With TQ Motor and Big Battery
Trek Slash+ 9.7 in Review [German]
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