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Walk-Behind Mowers

Brand: Ryobi

Ryobi 40V HP Brushless Self-Propelled Multi-Blade Mower Kit | 21-in

Mow up to 3/4 acre with ease using this powerful cordless mower!

• 40V HP Technology Delivers More Power Than a 170cc Gas Mower
• Ideal for 3/4 Acre With up to 75 Min. Runtime
• Industry's Best Cut Performance with CROSS CUT Multi-Blade System

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The RYOBI 40V HP Brushless 21″ Self-Propelled Multi-Blade Mower Kit, ideal for up to 3/4 acre yards, delivers gas-equivalent performance with two 40V 6Ah batteries powering a brushless motor, offering up to 75 minutes of runtime with two active ports. The 21-in. deck adjusts to cutting heights from 1 to 4 in, featuring the CROSS CUT™ Multi-Blade System for superior mulching, side discharging, or bagging with a 2-bushel capacity, reducing clumping and maximizing bag space. The SMART TREK™ adaptive speed adjusts to your pace, while the CUT COMMAND CENTER™ monitors runtime, blade life, and activates turbo mode or lights. The mower recharges with the included 120V 295W Rapid Charger, features one-touch folding handles for vertical storage, and weighs 79.2 lbs. Compatible with any RYOBI 40V battery. • Battery: Two 40V 6Ah with 3-year warranty and LED fuel gauge. • Cutting Deck: 21-in deck with 9.66 lb-ft torque. • Charger: 120V 295W Rapid Charger with 3-year warranty. Box includes: Self-Propelled Mower, 2 x 40V 6Ah Batteries, 40V Rapid Charger.

Battery

  • Voltage: 40V
  • Capacity: 6Ah (x2)
  • Runtime: Up to 75 min
  • Charge Time: Not specified
  • Warranty: 3-year limited

Cutting Deck

  • Width: 21 in
  • Height Range: 1-4 in
  • Positions: Not specified
  • Blade System: CROSS CUT™ Multi-Blade
  • Material: Not specified
  • Cutting Methods: Mulch/Side Discharge/Bagging
  • Bag Capacity: 2 bushels

Drive System

  • Type: Self-propelled
  • Speed Control: SMART TREK™ adaptive variable speed

Handle & Comfort

  • Handle Type: One-touch folding

Additional Features

  • Headlights: Yes (via CUT COMMAND CENTER™)
  • Turbo Mode: Yes
  • Max Towing Capacity: Not specified

Warranty

  • Tool Warranty: 5-year limited
  • Battery/Charger Warranty: 3-year limited

Dimensions

  • Height: Not specified
  • Length: Not specified
  • Width: Not specified
  • Weight: 79.2 lbs

Manufacturing

  • Location: Made in USA with global materials

Battery

  • Voltage: 40V
  • Capacity: 6Ah (x2)
  • Runtime: Up to 75 min
  • Charge Time: Not specified
  • Warranty: 3-year limited

Cutting Deck

  • Width: 21 in
  • Height Range: 1-4 in
  • Positions: Not specified
  • Blade System: CROSS CUT™ Multi-Blade
  • Material: Not specified
  • Cutting Methods: Mulch/Side Discharge/Bagging
  • Bag Capacity: 2 bushels

Drive System

  • Type: Self-propelled
  • Speed Control: SMART TREK™ adaptive variable speed

Handle & Comfort

  • Handle Type: One-touch folding

Additional Features

  • Headlights: Yes (via CUT COMMAND CENTER™)
  • Turbo Mode: Yes
  • Max Towing Capacity: Not specified

Warranty

  • Tool Warranty: 5-year limited
  • Battery/Charger Warranty: 3-year limited

Dimensions

  • Height: Not specified
  • Length: Not specified
  • Width: Not specified
  • Weight: 79.2 lbs

Manufacturing

  • Location: Made in USA with global materials

How Does Shipping Work and How Long Does It Take?
We understand how important it is for your new lawn mower to arrive safely and in perfect condition. We partner with professional carriers to ensure every order is handled with expert care from start to finish.

  • Professional Packaging – We use high-quality, industry-standard materials to protect your item during transit.
  • Full Insurance – Every order is fully insured, giving you peace of mind in the unlikely event of damage.
  • Real-Time Updates – Stay informed with notifications at every step of the shipping process.

Order Processing & Shipping Times
Orders are processed and shipped within 1-3 business days (excluding weekends and holidays). All items are delivered within 10 business days from the date of shipment. As your delivery date nears, the shipper will contact you to coordinate a seamless drop-off.

Before ordering, please verify your shipping address to prevent delays. Your satisfaction is our priority, and we’re committed to making your shopping experience smooth and enjoyable. Have questions? Email us at support@lawn-rider.com—we’re here to help!

10 reviews for Ryobi 40V HP Brushless Self-Propelled Multi-Blade Mower Kit | 21-in

4.7 out of 5 stars (based on 10 reviews)
Excellent80%
Very good10%
Average10%
Poor0%
Terrible0%

 

March 27, 2025

Traded my 21″ gas mower for this 21″ electric Ryobi. Used it for the first time today to mow my city size lot. I employed the installed two-cell run with 25% power remaining after 1 &1/2 hour cut. The digital display panel monitors the machine during the run. The quiet running mower is durable with all the safety features. The clippings bag is double the old machines.

Shelving
March 11, 2025

Generally OK mower. However, the 1″ setting is still a little higher than my gas mower at it’s 1″ setting. Also, at the lowest setting it does not readily suck up leaves. It just pushes them around.

Mark
September 26, 2024

Stores easily, wheel height adjusts easy and it has plenty of power even without the turbo. Mulched great. And you no longer have to store gas.

777Den
September 15, 2024

Very easy to assemble and light weight. Perfect for getting arround my trees and into and out of ditches. Love It and Great price!

James
July 2, 2024

It’s been great so far. I’ve got a couple of cycles on it so far, and it’s everything I could want. Storage (being able to stand on end) is great, and it’s nice that the handle locks in the storage position so you can use it to help lift the unit.

by

Evan

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