Hyundai 17" Petrol Lawnmower vs Hyundai 20" Petrol Lawnmower
We compare the Hyundai 17" Petrol Lawnmower and the Hyundai 20" 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
| Hyundai 17" Petrol Lawnmower | Hyundai 20" Petrol Lawnmower | |
|---|---|---|
| Our score | 7.8/10 | 8.9/10 |
| 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 | Hyundai | Hyundai |
Mower Type and Power
Hyundai 17" Petrol Lawnmower
This lawn mower petrol lawnmower uses a 139cc 4-stroke petrol engine. It is designed to mow a 42cm path in each pass, and being a petrol model it relies on fuel and recoil pull starting rather than mains power, making it better suited to gardens where extension leads are inconvenient. The 139cc 4-stroke format typically supports steadier running for longer sessions, while it also requires routine attention such as keeping the engine well maintained and storing fuel safely. It is self-propelled to reduce pushing effort once moving, although start-up still involves manual pulling.
Hyundai 20" Petrol Lawnmower
Petrol-powered self-propelled lawn mowing is handled by the lawn mower inch / 51 cm 196 cc petrol lawnmower. It is designed to cut grass across a 51 cm cutting width per pass. The self-propelled drive supports forward movement, which can help reduce effort on longer, uneven ground. It also offers multiple cutting heights, with 6 set levels, so users can adjust the cut for different grass conditions.
Cutting Width and Deck
Hyundai 17" Petrol Lawnmower
Cutting width and deck size matter because they influence how much lawn gets covered in each pass and how easy the mower feels around obstacles. The Hyundai uses a 42 cm cutting width, so it covers roughly that strip each time, which can reduce passes on open lawns. Its deck supports mowing over uneven ground, but clearance near beds, steps, and fence lines will still require careful steering. With five cutting heights, the deck can be set to suit different grass lengths, helping avoid scalping. For larger, dense patches, the 42 cm cutting width may require more overlapping passes.
Hyundai 20" Petrol Lawnmower
The Hyundai inch 51 cm 196cc electric-start self-propelled petrol lawnmower is set up for a 51 cm cutting width, meaning each pass covers a fairly wide strip of lawn. This wider deck can reduce the number of overlaps when mowing, especially along straight runs, while awkward edges still require careful turning. The deck offers 6 cutting heights, allowing the operator to match the blade height to grass conditions rather than relying on one fixed setting. A 51 cm deck can also make pushing through narrower pathways more difficult because the mower remains broad.
Lawn Size and Collection
Hyundai 17" Petrol Lawnmower
For lawns that require regular trimming rather than deep renovation, the lawn mower (42 cm) petrol self-propelled lawnmower is a practical fit because its 42 cm cutting width covers more ground per pass, helping reduce the time spent mowing open sections. For larger spaces, this wider pass can reduce how often the mower needs repositioning, although lawn density and grass growth still affect the mowing pace. The 45 litre grass collector is designed for collecting cuttings, so mowing runs can be planned around when the collector needs emptying. With five cutting heights, the mower can be adjusted for different lawn conditions, although tall grass may need more passes to achieve an even finish.
Hyundai 20" Petrol Lawnmower
A 51 cm cutting width determines the lawn area covered per pass, but collection capacity affects how often the operator needs to stop. The lawn mower petrol mower uses a grass box collector with a 70 l capacity, so it is suited to medium to larger gardens where emptying is less frequent. For smaller lawns, the 51 cm width can still be effective, although corners and edges typically require shorter passes. When mowing longer grass, the clippings fill the box faster, so more trips to empty the collector are expected. Six cutting heights provide control over grass cutting, helping manage buildup and reduce rework.
Ease of Use and Storage
Hyundai 17" Petrol Lawnmower
With a 42 cm cutting width and foldable handles, the Hyundai (42 cm) petrol self-propelled lawnmower is designed for easier handling during everyday mowing, while aiming to make storage more manageable. The foldable handles reduce the space it takes up in a shed or garage, rather than leaving it as a bulky shape. A removable 45 L grass collector helps with cleaning, as it can be taken off to empty. The recoil pull start is straightforward but still involves manual effort, particularly after longer periods of storage. It also has five cutting height settings, so the height needs to be set before mowing.
Hyundai 20" Petrol Lawnmower
Ease of use is shaped by the mower's self-propelled petrol design and its handling features, because the operator can move the machine forward with less pushing effort, while still controlling the cut by setting one of the six cutting heights. The 51cm cutting width helps cover ground in fewer passes, and the 70l grass collector reduces how often collection stops are needed, although this depends on grass volume. For storage, the foldable handles support easier placement in sheds or garages, and the 20-inch class format is typically easier to manoeuvre around tight spaces. Some weight remains, so careful lifting is required.
Who Is This Lawn Mower For?
Hyundai 17" Petrol Lawnmower
Who is this lawn mower for? The lawn mower (42cm) petrol self-propelled mower suits homeowners and small-to-medium gardens where a 42cm cutting width can cover ground efficiently. A 45L grass collector and foldable handles suit users who want straightforward grass bagging and compact storage after mowing. It may be less suitable for those with very tight spaces or anyone who prefers not to deal with petrol.
Hyundai 20" Petrol Lawnmower
This lawn mower petrol lawnmower is aimed at homeowners looking for a self-propelled petrol machine for regular garden mowing. The 51cm cutting width helps reduce the number of passes, which suits people with mid-sized lawns who want a single mower for routine use. The 196cc petrol engine and electric-start setup provide quicker readiness, and the 70-litre grass collector is designed to reduce how often the bin needs emptying. Six cutting heights suit lawns that require changes in cut length across seasons or areas where growth is slightly different. For very small gardens where storage space and easy manoeuvring matter more than cut width, it may be less suitable.
Hyundai 17" Petrol Lawnmower: pros
- Petrol mower
- 42cm cutting width
- 139cc 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 20" Petrol Lawnmower: pros
- Petrol mower
- 51cm cutting width
- 196cc 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
Our verdict
Our pick is the Hyundai 20" Petrol Lawnmower (our score 8.9/10) - A capable lawn mower (petrol mower, 51cm cutting width, 196cc petrol engine) for a well-kept lawn. The Hyundai 17" Petrol Lawnmower is still worth it if it is cheaper when you check, or if it better matches your specific needs.

