The Cobra RM433SPBI is equipped with the world's first lawn mower engine to combine the power of petrol and the starting reliability of lithium-ion battery technology. The mower is powered by a Briggs & Stratton 575iS Series™ InStart® engine for effortless, push-button starting every time.
This model is self-propelled with a three-speed transmission and equipped with a rear roller to produce a beautiful, traditional striped finish. The 150cc single cylinder, four-stroke OHV (overhead valve) engine offers a quiet, yet powerful and lightweight combination to power through a variety of demanding applications and the changing conditions of the British lawn.
Equipped with a premium steel deck with a compact 43cm (17") cutting width, it features six cutting heights ranging from 17mm for a superb low finish, up to 75mm for tackling longer grass. The height of cut is adjusted simply by using the single height of cut adjustment lever conveniently positioned next to the rear roller.
The Cobra RM433SPBI comes equipped with a 'high lift' cutting blade. High lift blades increase the airflow to lift grass for an improved cut and collection meaning more grass clippings can be packed into the generous 50 litre grass bag. The grass bag is made of a robust, high quality fabric which enables strong, free airflow resulting in more compact and excellent collection.
The lawn mower has a full width rear roller which helps to create a striped lawn. As the rear roller supports the lawn mower when the front wheels are in line with the border edge, it allows you to mow right up to the edge of flowerbeds and borders.
The Cobra RM433SPBI three-speed rear roller petrol lawn mower is designed for the smaller garden and is backed by a two year manufacturer's warranty for domestic use. The self-propelled system takes all the effort out of pushing your lawn mower so you can maintain your lawn and not feel exhausted when the grass cutting is complete.
| Brand | Cobra |
|---|---|
| Engine | Briggs & Stratton |
| Engine Model | 575IS In Start |
| Engine Type | 4-stroke, OHV |
| Displacement | 150cc |
| Net Rated Power Output | 2.2kW |
| Start Method | Push-button |
| Propulsion | Self-propelled variable speed |
| Transmission | 3 speed |
| Ground Speed | Speed 1: 3.1km/h / Speed 2: 3.7km/h / Speed 3: 4.2km/h |
| Throttle Control | No |
| Fuel Tank Capacity | 0.8L |
| Cutter Deck | Steel |
| Blades | High lift |
| Width of Cut | 43cm / 17" |
| Minimum Cutting Height | 17mm |
| Maximum Cutting Height | 75mm |
| Cutting Height Adjustment | Central, 6 stages |
| Grass Collector | Fabric grass bag with hard top |
| Collector Capacity | 50L |
| Fill Level Indicator | Yes |
| Handle Type | Folding, cam lock |
| Rear Roller Type | Full width |
| Weight | 31.5kg |
| Includes | FREE lawn mower starter kit: 4-stroke oil, fuel fit + fuel can |
| Warranty | 2 years |
| Global Trade Item Number | 5055485037756 |
| Promotional Image | no_selection |
Briggs & Stratton 150cc 575IS InstartInStart from Briggs & Stratton delivers the next generation in easy starting. Ingenious integration of engine and battery gives you cutting power at a touch. No more pulling the recoil to start your lawn mower. |
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43cm / 17" cutting deckThe Cobra RM433SPBI lawn mower boasts a sturdy 43cm cutting deck, ideal for medium to large sized lawns. This deck size ensures efficient and precise mowing, delivering a clean, even cut with every pass. The 17" width perfectly balances manoeuvrability and coverage, allowing you to easily navigate around obstacles. |
Push-button startingProven lithium-ion battery technology ensures simple instant starting over-and-over again without constant recharging. Push-button is the easiest starting ever. InStart technology eliminates the need for the traditional recoil starting system. |
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Quick battery chargingThe InStart battery can be quickly charged from flat so you don't have to wait too long until your mower is ready to go! More than 50 starts from a fully charged battery. |
Three-speed gearboxThis feature allows the operator to select the drive speed to suit the mowing conditions (faster for longer runs and slower for more intricate areas) using the control unit mounted on the handlebar. |
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Beautiful striped finishEquipped with a full width rear roller to help produce a traditional striped finish. The RM433SPBI also gives you the ability to mow right up to the edge of flowerbeds and borders. |
High lift bladeThe Cobra RM433SPBI comes equipped with a 'high lift' cutting blade. High lift blades increase the airflow to lift grass for an improved cut and collection meaning more grass clippings can be packed into the generous 50litre grass bag. |
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17-75mm cutting heightsWith a fully adjustable six cutting heights ranging from 17mm for a superb low finish, up to 75mm for tackling longer grass, choose the Cobra RM433SPBI. All this is achieved by simply using the single height of cut adjustment lever |
Spacious 50 litre collection bagEquipped with a 50 litre fabric grass bag, ideal for collecting large amounts of grass clippings before the need for emptying. To make life even easier, Cobra has equipped it with a grass bag full indicator system. |
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ABOUT COBRA GARDEN.....

Cobra Garden - The Most Comprehensive Range of Garden Machinery in the UK
Cobra garden machinery was launched in the United Kingdom in 2013 and is supported by Henton & Chattell Ltd, giving Cobra the benefit of over 90 years experience in the garden machinery and horticultural Industry.
The Cobra Garden range is constantly expanding and now consists of over 130 products to cover both your domestic and professional requirements. Cobra incorporates a comprehensive range of petrol, electric and cordless lawn mowers, hand-held machines and lawn care products. Cobra Garden products are available across the UK throughout a network of approved specialist dealers. As a Cobra Garden approved dealer, The Green Reaper has the knowledge and experience to help you purchase the correct Cobra Garden product for your requirements. We will also provide expert after-sales assistance if needed.
Cobra Garden’s philosophy is to remain true to its trusted values of innovation, quality, reliability, value and customer service. Cobra Garden works hard to ensure that the products and services on offer continue to be relevant to its customers.

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This product arrives in a box |
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Small hand tools are required for assembly |
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Oil is required in the engine before starting |
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