Mountfield SP41 vs Hyundai Petrol Lawnmower
We compare the Mountfield SP41 and the Hyundai Petrol Lawnmower across every dimension that matters - our scores, the key specs, and how each performs on the things you will actually notice day to day.
At a glance
| Mountfield SP41 | Hyundai Petrol Lawnmower | |
|---|---|---|
| Our score | 8.4/10 | 7.7/10 |
| Best for | Keeping your lawn tidy to suit its size and terrain | Keeping your lawn tidy to suit its size and terrain |
| Not ideal for | A lawn much bigger or rougher than this mower is built for | A lawn much bigger or rougher than this mower is built for |
| Brand | Mountfield | Hyundai |
Mower Type and Power
Mountfield SP41
Powered by a 123cc ST120 Autochoke petrol engine, this lawn mower is a self-propelled lawn mower designed to reduce the pushing effort during mowing runs, particularly on uneven ground or when the lawn is thicker. The Autochoke feature is intended to help starting by automatically managing choke settings. It is aimed at typical garden mowing up to the stated 250m².
Hyundai Petrol Lawnmower
The lawn mower (40 cm) petrol lawn mower is powered by a petrol engine, making it suited to mowing without needing a connection to power outlets. It uses a 79 cc petrol engine, which supports independent use and explains the conventional petrol workflow, including starting and fuelling during everyday operation. As a mower type, it is a standard petrol unit rather than an electric battery system. The engine capacity indicates it is designed for steady mowing across typical garden grass. Overall, it fits users who want mobile lawn mowing power using petrol.
Cutting Width and Deck
Mountfield SP41
With a 39cm cutting width, the Mountfield covers a moderate strip of grass each pass, which can help keep mowing sessions from becoming too slow compared with narrower decks. For best results, the user should overlap the previous mowing line slightly, so uneven patches do not stay long. On larger areas, the 39cm cutting width means steady pacing matters, especially around edges and obstacles where narrower manoeuvring may be required.
Hyundai Petrol Lawnmower
A 40 cm cutting width defines how wide the Hyundai/40 cm mower can trim in one pass, making it suitable for typical UK garden mowing without needing heavy overlap. The deck size supports that pass width and affects how consistently grass is handled across the lawn. During turns, partial overlap can leave thinner strips if the mower is pivoted too sharply. Cutting height is adjustable in six steps, letting users match conditions such as taller growth. The 79 cc petrol setup helps maintain cutting action, although results still depend on steady pushing and pass overlap.
Lawn Size and Collection
Mountfield SP41
A 39cm cutting width sets the pace and helps determine how long it takes to clear a typical lawn, so matching the mower's work size matters. The lawn mower is rated for up to 250m², which makes it suitable for small to mid-sized gardens rather than large estates. It uses a grass box for collection, collecting clippings as it cuts. For best results, plan short passes, start at the edge and work inward, and empty the 40L box when full to keep airflow consistent. Larger lawns will require more stops.
Hyundai Petrol Lawnmower
A 40 cm cutting width is most effective when it matches the lawn size, because each pass covers a limited strip and larger areas require more overlap. On small to medium gardens, that width can suit routine mowing since there is less distance to travel between overlaps. For larger lawns, grass-collection capacity becomes more important, because a 40 l collector bag will fill sooner as mowing continues. The six adjustable cutting heights help manage clippings during different growth rates, while emptying the bag at regular intervals helps maintain consistent grass collection and airflow.
Ease of Use and Storage
Mountfield SP41
The Mountfield is designed for straightforward operation and compact storage, aided by its 39cm cutting width and a grass box for collecting clippings. It is powered by a 123cc petrol engine, so it does not depend on battery charging routines. For day-to-day handling, the 39cm deck helps it work through narrower paths, and it is specified for lawns up to 250m² when used as directed. After mowing, the grass box can be emptied and reattached, although storing it may still require careful positioning depending on shed layout.
Hyundai Petrol Lawnmower
Ease of use matters because a petrol mower involves both starting steps and day-to-day handling before mowing. The lawn mower (40 cm) 79 cc model uses a petrol engine, so the operator needs to manage fuel readiness and follow the start procedure before cutting. Once running, the 40 cm cutting width helps cover ground in fewer passes, and the 6 adjustable cutting heights allow the cutting height to be set for different grass conditions. For storage, foldable handles reduce the space needed when the mower is put away. The grass collector bag supports tidy disposal, but it needs emptying and reattaching after mowing sessions. At 19 kg, lifting and manoeuvring the mower requires care.
Who Is This Lawn Mower For?
Mountfield SP41
This lawn mower is for people who want a petrol self-propelled option for routine garden mowing, particularly where the lawn is larger than a small courtyard. It is suitable for homeowners with up to a 250m² working area, with a 39cm cutting width that helps cover more ground at a steady pace. The 123cc ST120 Autochoke petrol engine suits users who prefer petrol power rather than cordless batteries. Grass collection is supported with a 40L collector, making it suitable for anyone who wants to collect clippings in the box. It may be less suitable for very small lawns or tight storage spaces, where lighter mowers can be easier.
Hyundai Petrol Lawnmower
This lawn mower petrol lawn mower is suited to people who want a self-managed petrol engine and a 40 cm cutting width for regular grass cutting, particularly when they prefer to select the cutting height themselves. It fits small to medium gardens, where a wider pass can help speed up mowing. With 6 adjustable cutting heights, it is practical across different lawn conditions, including uneven growth. The 40 l grass collector bag reduces how often it needs emptying, although it can fill more quickly during heavier growth. At 19 kg, it is better for owners comfortable lifting and manoeuvring the mower, while the foldable handles help it store neatly after use.
Mountfield SP41: pros
- Petrol mower
- 39cm cutting width
- 123cc petrol engine
- Self-propelled
- Grass box collection
Cons
- Petrol needs fuel, oil and more maintenance
- Match the cutting width and power to your lawn size
- Heavier models are harder to manoeuvre and store
Hyundai Petrol Lawnmower: pros
- Petrol mower
- 40cm cutting width
- 79cc petrol engine
- Grass box collection
- Keeps the lawn tidy for its size
Cons
- Petrol needs fuel, oil and more maintenance
- Match the cutting width and power to your lawn size
- Heavier models are harder to manoeuvre and store
Our verdict
Our pick is the Mountfield SP41 (our score 8.4/10) - A capable lawn mower (petrol mower, 39cm cutting width, 123cc petrol engine) for a well-kept lawn. The Hyundai Petrol Lawnmower is still worth it if it is cheaper when you check, or if it better matches your specific needs.