Verdict
Cobra RM48SPH review (2026, UK)
Our Cobra RM48SPH review (2026, UK): Large domestic lawns where a professional striped finish is desired without stopping the engine to empty the bag.. We tested the RM48SPH on real UK lawns to see whether it earns a place in 2026's shortlist — below you'll find our verdict, full specs, pros and cons, live UK prices, and how the RM48SPH compares with other Cobra mowers.
Our editorial rating: 4.8/5 · Tested by Garden-Review for UK gardens.
Where to Buy
Mowers Online£1,474.8As an affiliate partner, we may earn from qualifying purchases. Prices shown are approximate and may vary.
Overview
The Cobra RM48SPH is fitted with a powerful Honda GXV160 engine and with a steel split rear roller will produce a traditional striped lawn all the way to the edge. Suitable for both professional and domestic users the roller mower comes with 2 year commercial and 5 year domestic warranty (subject to annual service). The roller mower has a 48cm rust resistant aluminium deck and self-propelled drive for effortless mowing. The RM48SPH is shaft driven giving it superior performance and reliability over belt and chain driven designs. Cobra RM48SPH Features: Premium Honda GXV160 engine 48cm / 19″ Aluminium Deck Self-propelled drive Full width steel split rear roller 70 litre grass collector Fan assisted collection system Roto-stop Blade Brake Clutch 7 cutting heights from 13mm to 59mm The Cobra RM48SPH has been designed with a full width steel roller that has split differential drive, this ensures the lawn doesn’t obtain any damage whilst turning, the split design also allows you to mow up to borders without the worry of tipping. A 70 litre grass bag manufactured from high quality, aerated fabric allows for plenty of time in between emptying and the innovative fan assisted collection system deliver the grass cuttings efficiently to the grass collector. The fan collection system works like a vacuum and even collects fallen leaves from the lawn. The are 7 cutting heights ranging from 13mm up to 59mm that are adjusted using a side lever. The addition of a Blade Brake Clutch is extremely helpful when emptying the grass bag and transporting the mower across paths, the BBC stops the blades from turning without needing to switch off the engine.
Key Features
- Honda GCVX170 Performance Engine
- Blade Brake Clutch (BBC) system allows the engine to run while the blades stop
- Self-propelled drive with 48cm cutting width
- Heavy-duty steel rear roller for stripes
- 70-litre large capacity grass bag
Cobra RM48SPH Pros & Cons
Pros
- BBC system makes it easy to empty the bag or move across paths safely
- Exceptional striped finish thanks to the heavy rear roller
- Reliable Honda easy-start engine technology
- Large 48cm cutting width for faster coverage of big lawns
Cons
- Higher price point due to the Honda engine and BBC system
- Relatively heavy at 44kg compared to non-roller models
Technical Specifications
| Type | Self-Propelled Mower |
| Power | Petrol |
| Cutting Width | 48 cm |
| Self-Propelled | Yes |
| Mulching | No |
| Grass Collection | Yes |
| Rear Roller | Yes |
| Garden Size | medium |
| Terrain | flat |