# Ryobi 40V HP Brushless 21" Self-Propelled (RY401140) vs Cub Cadet SC300 21": specs and price compared

A sourced, side-by-side comparison of the Ryobi 40V HP Brushless 21" Self-Propelled (RY401140) (Ryobi) and Cub Cadet SC300 21" (Cub Cadet) among lawn mowers. Cub Cadet SC300 21" is the cheaper of the two at $479.

## Side by side

| Spec | Ryobi 40V HP Brushless 21" Self-Propelled (RY401140) | Cub Cadet SC300 21" |
| --- | --- | --- |
| US price | $549 | $479 |
| Brand | Ryobi | Cub Cadet |
| Released | 2020 | — |
| Power source | battery | gas |
| Cutting width (in) | 21 | 21 |
| Self propelled | Yes | Yes |
| Engine cc or voltage | 40 V | 173 cc (Kohler) |
| Deck material | poly (polypropylene) | steel |
| Discharge modes | mulch / bag / side discharge | mulch / bag / side discharge |
| Battery ah | 6 | — |

## Key differences

- Power source: Ryobi 40V HP Brushless 21" Self-Propelled (RY401140) battery vs Cub Cadet SC300 21" gas
- Engine cc or voltage: Ryobi 40V HP Brushless 21" Self-Propelled (RY401140) 40 V vs Cub Cadet SC300 21" 173 cc (Kohler)
- Deck material: Ryobi 40V HP Brushless 21" Self-Propelled (RY401140) poly (polypropylene) vs Cub Cadet SC300 21" steel

## Sources

- Ryobi 40V HP Brushless 21" Self-Propelled (RY401140): https://www.homedepot.com/p/RYOBI-40V-HP-Brushless-21-in-Cordless-Battery-Walk-Behind-Self-Propelled-Lawn-Mower-with-2-6-0-Ah-Batteries-and-Charger-RY401140US/333990995 (homedepot.com, verified 2026-06-19)
- Cub Cadet SC300 21": https://www.cubcadet.com/en_US/self-propelled-mowers/sc300/12AVB2KM710.html (cubcadet.com, verified 2026-06-19)

Canonical: https://frontdeskreview.com/gear/lawn-mowers/ryobi-40v-hp-brushless-ry401140-vs-cub-cadet-sc300/
Cite: Per The Front Desk Review, Ryobi 40V HP Brushless 21" Self-Propelled (RY401140) ($549) vs Cub Cadet SC300 21" ($479) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/lawn-mowers/ryobi-40v-hp-brushless-ry401140-vs-cub-cadet-sc300/
License: CC BY 4.0.