Why Choose Cordless Garden Tools?Why Choose Cordless Garden Tools?
Why choose cordless garden tools?
  1. Better for the environment
  2. No power cable to get in the way
  3. No unpleasant exhaust fumes
  4. Lower running costs
  5. Much lower maintenance
  6. Extremely quiet
  7. Reduced vibration levels

Cobra RM4140V Rear Roller Cordless Lawn Mower

£389.99
RRP: £425.99 | SAVE £36
Out of stock
SKU
COB-RM4140V
EXPRESS DELIVERY (usually next working day, if ordered by 2pm).
FIND OUT MORE (DETAILS & COSTS).
Pay in 3 interest-free payments of £130.00.
Available for purchases of £30 to £2,000
Find out more
  • Full-Width Integrated Rear Roller: Heavy-duty rear roller layout delivers a classic, professional striped lawn finish while preventing edge scalping along borders.
  • Premium 41cm (16") Steel Deck: Highly durable, impact-resistant metal deck engineered with an aerodynamic under-shield to maximize grass collection efficiency.
  • Samsung 40V Battery & Fast Charger Included: Supplied as a complete kit featuring a fade-free 40V lithium-ion battery and matching 90-minute rapid charging base.
  • 7-Stage Single Lever Adjustment: Centralized single-lever mechanical control alters your cutting heights quickly from a low 20mm up to a tall 75mm.
  • 50L High-Airflow Catcher: Large-capacity, robust fabric collection bag optimizes internal air circulation for exceptionally compact grass packing.
  • Full-Width Integrated Rear Roller: Heavy-duty rear roller layout delivers a classic, professional striped lawn finish while preventing edge scalping along borders.
  • Premium 41cm (16") Steel Deck: Highly durable, impact-resistant metal deck engineered with an aerodynamic under-shield to maximize grass collection efficiency.
  • Samsung 40V Battery & Fast Charger Included: Supplied as a complete kit featuring a fade-free 40V lithium-ion battery and matching 90-minute rapid charging base.
  • 7-Stage Single Lever Adjustment: Centralized single-lever mechanical control alters your cutting heights quickly from a low 20mm up to a tall 75mm.
  • 50L High-Airflow Catcher: Large-capacity, robust fabric collection bag optimizes internal air circulation for exceptionally compact grass packing.

Cobra RM4140V: 41cm (16") 40V Cordless Rear-Roller Steel Deck Lawnmower (Complete Kit)

The Cobra RM4140V completely updates traditional British lawn care, combining the classic striped finish of a rear-roller mower with the effortless, push-button starting of a modern 40V cordless network. Purpose-built for homeowners with medium-sized lawns who want pristine lawn boundaries and manicured stripes, this hand-propelled mower eliminates the typical headaches of mixing two-stroke engine oil, maintaining spark plugs, or dragging hundreds of feet of tangled electrical cable over sensitive flowerbeds. Lightweight yet incredibly robust, its high-torque motor provides flat-out cutting power right through your entire mowing session.

Full-Width Rear Roller & Rugged Steel Cutting Deck

  • Integrated Full-Width Rear Roller: Achieve beautiful, professional-grade lawn stripes with absolute ease. The heavy-duty rear roller runs the full width of the rear chassis, flattening the grass blades as you push to create a stunning alternating light-and-dark striped pattern, while allowing you to safely mow right up to the edge of borders and garden flowerbeds without scalping the turf.
  • Premium Heavy-Duty Steel Deck: Built to endure years of demanding domestic service. Unlike flimsy plastic alternatives, the hardwearing metal cutter deck resists impacts from hidden stones and roots, while its aerodynamically optimized underside maximizes airflow to give you exceptional cutting performance.
  • Centralized 7-Stage Single-Lever Height Adjustment: Transition effortlessly from early spring growth down to low bowling-green trims. A single, smooth-operating mechanical lever positioned conveniently by the rear wheel adjusts the entire deck simultaneously across seven height stages, spanning from a crisp 20mm up to a generous 75mm.

Advanced Aerodynamic Collection & Intuitively Balanced Controls

  • 50-Litre High-Flow Fabric Grass Bag: Pack more clippings into every single run. The large-capacity catcher is woven from a high-grade, porous fabric that allows a continuous, robust free flow of air, packing grass clippings exceptionally tight from the back of the box forward to minimize your trips down to the compost heap.
  • Intuitively Positioned LED Battery Telemetry: Keep total track of your remaining mowing window. A bright, multi-stage LED battery power indicator is integrated right between the primary operator handles at the top of the handlebar assembly, giving you a clear visual readout without needing to stop and lift the motor cover.
  • Space-Saving Quick-Fold Handlebars: Reclaim valuable garage or garden shed real estate. The ergonomic handlebar assembly features user-friendly, tool-free locking dials, allowing you to fold the entire upper frame completely flat over the steel deck for compact storage or clean transport in a car boot.

The Cobra 40V Samsung Lithium-Ion Advantage

The Cobra RM4140V arrives complete with a high-performance 40V Lithium-Ion battery featuring premium Samsung cells alongside a matching fast-charger, giving you a complete out-of-the-box cutting solution. Engineered to maintain consistent power with zero memory effect or self-discharge, this battery delivers up to 30 minutes of continuous mowing runtime on a single charge and refills completely in a rapid 90 minutes. Best of all, this interchangeable 40V power source is fully compatible with Cobra's entire 40V handheld and rotary mower garden lineup, helping you expand your tool collection at a fraction of the cost.

What's In The Box: 1x Cobra RM4140V Rear-Roller Lawnmower, 1x 40V Lithium-Ion Battery (Samsung Cells), 1x 40V Fast-Charging Dock, 1x 50-Litre Fabric Grass Collection Bag, 1x Safety Activation Key, 1x User Manual.

More Information
Art No CORM4140V
EAN 5055485036964
Brand Cobra
Power Source Cordless / Battery
Power Details 40V Samsung Lithium-ion Battery 4.0Ah
Battery Voltage 40V
Transmission N/A
Starting Method Push Button Start
Design Rear Roller
Cutter Deck Steel
Cutting Width 41 cm
Cutting Heights 25 - 75mm
Number Cutting Heights 7
Propulsion Hand Pushed
Collector 50 Litres
Weight 24kg
Warranty 2 Years
Other Features Charge Time: 80% Charge in 45 mins

Expertly Handled Delivery

From fast express parcels to our signature White Glove personal handover, we ensure your machinery arrives safely, quickly, and ready for work.

Standard Delivery

£9.99 (Eng/Wales) 1 - 3 Working Days
  • Reliable courier service for most items.
  • Items dispatched Mon-Fri.
  • Next-day arrival possible in many cases.

Express Delivery

£9.99 (Eng/Wales) 1 - 2 Working Days
  • Priority dispatch for urgent orders.
  • Order before 2pm (Mon-Fri) for fastest service.
  • Available on many popular items.
  • Full email notifications for any delays.

Start 'N' Go

From £29.00 3 - 5 Working Days
  • Fully Assembled & Tested by our technicians.
  • Arrives on a secure pallet via 'Palletline'.
  • The courier will contact you to book a slot.
  • Ready to mow immediately on offloading.

Start 'N' Go +

White Glove Service 3 - 5 Working Days
  • Personal Delivery on our own transport.
  • Full Demonstration: We show you how to use it.
  • Zero Waste: We take pallets and crates back.
  • Available on select products in England & Wales.

Important Delivery Information

Working Days:
Please note that Saturday & Sunday do not count as working days. Orders placed over the weekend are processed on the following Monday (or Tuesday during Bank Holidays).
Booking Your Slot:
For Start 'N' Go orders, Palletline will contact you directly. For Start 'N' Go+, our own team will call you. Please ensure a daytime contact number is provided.
Ride-On Mowers:
Start 'N' Go rates for Ride-Ons start at £69 (Garden Riders) and £79 (Tractors). Start 'N' Go+ rates for Ride-Ons start at £99.00 (for both riders and tractors). This specialist service is currently available for Mainland England and Wales postcodes.

*Flat rates apply to Mainland England and Wales. Additional charges apply to Scottish postcodes and offshore addresses. Please contact us to obtain a quote, alternatively, please place your order which will be a pre-authorised transaction only and we will email you with the exact shipping cost within one working day. If you do not agree to the quote your order will be cancelled and no funds will be taken.

Delivery Frequently Asked Questions

How much is delivery?

We charge a flat rate of £9.99 for all orders (Standard or Express) being sent to mainland England and Wales addresses. Additional charges apply to Scottish mainland addresses and offshore locations.

How long does delivery take?

Standard Delivery: Usually 1-3 working days.
Express Delivery: Usually 1-2 working days (often Next Day).
Start 'N' Go / Premium+: Usually 3-5 working days due to expert assembly.

Do you deliver on Saturdays?

Our standard delivery service operates from Monday to Friday. Saturday and Sunday do not count as working days.

What is Start 'N' Go/Premium+ and how does it affect delivery?

These services mean your machine is fully assembled, fuelled, and tested. Delivery typically takes 3-5 working days due to the assembly and specialist transport.

Will the courier call me before delivery?

For Start 'N' Go, Palletline will contact you. For Start 'N' Go+, our team will call to arrange a timed slot.

Can I track my order?

Yes. You will receive an email containing your tracking information once dispatched.

What happens if my item arrives damaged?

Please notify us immediately. If noticed upon delivery, please sign as "damaged" or refuse the delivery.

Full Delivery Details and Information

We are very sorry but please be advised that for the foreseeable future we cannot despatch orders to Northern Ireland, Republic of Ireland, the Channel Islands or any UK offshore postcodes.

Please see below for a breakdown of our various delivery services, including rates. In all instances, you will receive notification of when your order has been dispatched, and where possible tracking information will also be provided. Please regularly check your email account for any updates.

STANDARD DELIVERY

Most items will be sent out on our Standard delivery service. This service is available to most of the UK mainland*. This service is 1-3 working days (if ordered Mon-Fri, stock permitting), but is usually sooner than this. In many cases, your item could arrive next working day. Please note: Saturday & Sunday do not count as working days. Orders placed over the weekend will be processed on the following Monday (or Tuesday if a bank holiday). Some products are 3-5 working days, please refer to the specific model for a more accurate delivery guide. In some rare cases, your item might take longer than expected to arrive. If there is a delay in delivery, we will let you know via email.

We charge a flat rate of £9.99 for all orders which are being sent to mainland England and Welsh addresses, no matter the cost, weight or size. Please see below for additional charges to Scottish mainland addresses*.

EXPRESS DELIVERY

We offer an Express delivery service on many items to most of the UK mainland*. These items will be dispatched as soon as we possibly can and will usually arrive within 1-2 working days and in many cases on the next working day (stock permitting if ordered before 2 pm, Mon-Fri). Please note: Saturday & Sunday do not count as working days. Orders placed over the weekend will be processed on the following Monday (or Tuesday if a bank holiday). In some rare cases, your item might take longer than expected to arrive. If there is a delay in delivery, we will let you know via email.

We charge a flat rate of £9.99 for all orders which are being sent to mainland England and Welsh addresses, no matter the cost, weight or size. Please see below for charges to Scottish mainland addresses*.

START 'N' GO

Our Start 'N' Go service is available to most of the UK mainland*. Products that receive our Start 'N' Go service will need to be assembled and tested before being wrapped and dispatched on a pallet. Because of this, delivery is 3-5 working days (if ordered Mon-Fri, stock permitting) but during quieter times this can be much sooner. Orders placed over the weekend will be processed on the following Monday (or Tuesday if a bank holiday). You will be contacted by the Transport Company 'Palletline' to book your delivery in. Please ensure you provide a daytime contact number on your order.

Ride-On Mowers - We charge a minimum rate of £69.00 (for smaller garden riders) and £79.00 (for garden tractors) for all Start 'N' Go orders. This service is available to most mainland England and Wales postcodes. We cannot currently offer this service to any Scottish postcodes.

Everything else - We charge a minimum rate of £29.00 for all Start 'N' Go orders which are being sent to UK mainland addresses (England, Wales and some Scottish addresses*).

START 'N' GO +

Our premium Start 'N' Go+ service is available on certain products to most of England and Wales. Products that receive this service will be assembled, tested and personally delivered by one of our team on our own transport. We will also fully demonstrate the product for you. Delivery is usually 3-5 working days (if ordered Mon-Fri, stock permitting) but during quieter times this can be much sooner. Orders placed over the weekend will be processed on the following Monday (or Tuesday if a bank holiday). We will contact you to book your delivery in. Please ensure you provide a daytime contact number on your order.

Ride-On Mowers - We charge a minimum rate of £99.00 for all Start 'N' Go+ (plus) orders. This service is available to most mainland England and Wales postcodes. We cannot currently offer this service to any Scottish postcodes.

Everything else - We charge a minimum rate of £29.00 for all Start 'N' Go+ (plus) orders. This service is available to most mainland England and Wales postcodes. We cannot currently offer this service to any Scottish postcodes.

*Scottish Addresses

As of May 2024, we can no longer deliver ride-on mowers (lawn tractors, garden riders, front deck & zero-turns) to any Scottish Postcodes. Unfortunately we have been unable to source a reliable and cost efficient transport service north of the border.

If you are ordering any other product on our 'Start N Go' service additional charges will apply (in addition to our advertised standard charges).  If you wish to check if additional charges will apply to your postcode you can call us or use our Online Chat during office hours, or use the contact us page, please quote your full postcode and the make & model of the item(s) you wish to order.  You can still place your order through the website without receiving a quote and we will be in touch via email after the order has been placed to advise if there are any additional delivery costs.

For all other products, depending on the postcode and size of the item(s) you are ordering, additional charges will apply.  If you wish to check if additional charges will apply to your postcode you can call us or use our Online Chat during office hours, or use the contact us page, please quote your full postcode and the make & model of the item(s) you wish to order. You can still place your order through the website without receiving a quote and we will be in touch via email after the order has been placed to advise if there are any additional delivery costs.

For more information call our sales team on 0345 222 0231

Cobra

Cobra garden machinery has been expertly designed in the U.K to cater specifically for the changing conditions of the British garden. With a comprehensive line-up of quality and innovative products to tackle any gardening task, Cobra is the newest evolution in garden machinery. Cobra's range of lawn mowers features over 40 machines, starting with basic domestic models. Power options include electric, cordless and petrol, with own brand engines for the lower end models, right up to high end professional machines suitable for commercial use with Kawasaki, Honda and Briggs and Stratton engines. With the addition of brush cutters, hedge trimmers, chainsaws & polesaws, tillers, blowers, multi-tools and scarifiers available there is something for just about every gardening need possible. Cobra’s philosophy is to remain true to their trusted values of innovation, quality, reliability, value and customer service. They always work hard to ensure that their products and services continue to be relevant to UK gardeners and gardening professionals.

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