Ryobi Lawnmower 125Cc 410Mm Petrol

The Ryobi Lawnmower 125cc 410mm Petrol RM-125P is a powerful and practical petrol lawnmower designed for efficient residential lawn maintenance. Powered by a 125cc 4-stroke OHV engine and offering a 410mm cutting width, it provides the freedom of petrol operation without needing an electrical cable while mowing.

With a durable steel deck, central cutting-height adjustment and 45L grass catcher, the Ryobi RM-125P is well suited to regular garden maintenance and small to medium-sized lawns.

Ryobi 125cc Petrol Lawnmower

The Ryobi RM-125P combines a 125cc petrol engine with a manageable 410mm cutting width. Its petrol-powered design makes it particularly useful for lawns where access to electrical outlets is limited or where an extension cable would be inconvenient.

Product Details

• Brand: Ryobi
• Model: RM-125P
• Product Type: Petrol Lawnmower
• Engine: OHV 4-Stroke, forced-air cooled
• Engine Displacement: 125cc
• Rated Power: 1.9kW
• Rated Speed: 2,900 min⁻¹
• Cutting Width: 410mm
• Cutting Height: 20–65mm
• Height Adjustment: 7 positions
• Grass Catcher: 45L
• Deck: Rigid steel
• Front Wheel Diameter: 156mm
• Rear Wheel Diameter: 178mm
• Net Weight: Approximately 20kg

Powerful 125cc 4-Stroke Engine

At the heart of the mower is a 125cc OHV 4-stroke petrol engine delivering a rated 1.9kW of power. As a 4-stroke machine, petrol and engine oil are used separately rather than requiring the fuel-and-oil mixture associated with a 2-stroke engine.

The petrol-powered configuration provides convenient mobility around the garden without having to manage an electrical extension cable.

410mm Cutting Width

The 410mm cutting width provides a useful balance between mowing coverage and manoeuvrability. It allows the mower to cover a practical width with each pass while remaining manageable around typical residential gardens.

This makes the Ryobi RM-125P a practical choice for routine lawn maintenance around homes and other compatible properties.

7-Position Cutting Height Adjustment

Different lawns and seasons may require different grass heights. The RM-125P provides 7-position single-lever cutting-height adjustment, covering approximately 20mm to 65mm.

The central adjustment system makes it easier to change the cutting height without individually adjusting each wheel.

45L Grass Catcher

A 45-litre grass catcher collects clippings during mowing, helping leave the lawn looking neater and reducing the amount of loose cut grass requiring cleanup afterwards.

The generous catcher capacity also helps reduce how frequently the operator needs to stop and empty collected grass during normal mowing.

Rigid Steel Deck

The Ryobi RM-125P features a rigid steel cutting deck, providing a durable structure around the cutting area.

This makes the mower suitable for regular residential lawn-care duties when correctly operated, cleaned and maintained.

Key Features

• Powerful 125cc petrol engine
• 4-stroke OHV engine
• 1.9kW rated power
• 410mm cutting width
• Rigid steel deck
• 7 cutting-height positions
• 20–65mm cutting-height range
• Single-lever height adjustment
• 45L grass catcher
• 156mm front wheels
• Larger 178mm rear wheels
• Approximately 20kg net weight

Ideal Applications

The Ryobi Lawnmower 125cc 410mm Petrol is suitable for applications such as:

• Residential lawns
• Home gardens
• Property maintenance
• Regular grass cutting
• Garden maintenance
• Landscaping upkeep
• Areas where corded mowing is inconvenient

For very large properties or demanding commercial mowing, consider the required cutting width, engine capacity and expected operating time before selecting a mower.

Starting and Operating the Lawnmower

Before first use, read the manufacturer’s operating manual carefully. Ensure the mower contains the correct type and quantity of engine oil before starting the engine.

The RM-125P is a 4-stroke mower, so do not mix 2-stroke oil into the petrol. One current specification source lists SAE 30 or 10W-30 as suitable engine-oil types, but the supplied Ryobi manual should take precedence for the specific machine.

Before mowing:

• Inspect the lawn for stones and other objects.
• Check the engine oil.
• Add the correct petrol.
• Check that the catcher is correctly attached.
• Select the required cutting height.
• Inspect the blade and mower for visible damage.
• Keep people and pets away from the mowing area.

Maintenance

Regular maintenance helps keep a petrol lawnmower operating reliably.

Check the engine oil, air filter, cutting blade, wheels and other components at the intervals specified in the Ryobi manual. Remove accumulated grass from appropriate areas after use once the engine has stopped and cooled.

Never work beneath the mower or near the cutting blade while the engine can accidentally start.

Important Product Information

Before purchasing the Ryobi RM-125P 125cc Petrol Lawnmower, confirm:

• Model RM-125P
• 125cc engine displacement
• 410mm cutting width
• 45L grass catcher
• 7-position height adjustment
• Warranty terms
• Supplied accessories
• Fuel requirements
• Engine-oil requirements

Ryobi’s official specifications confirm the RM-125P’s 125cc displacement, 1.9kW rated power, 410mm cutting width and 45L catcher.

View the Ryobi RM-125P official product information

Availability

Available in-store and online at Build It DTM.