Side discharge: Yes
Mulching cutting system: Standard equipment
Rear discharge: Yes
Body material: Enamelled steel
Motor brand: Honda
Motor Model: GCVx170
Cubic capacity: 170 cm³
Nominal power: 5.5 HP
Max. recommended area: 1600 m²
Maximum grass height: 35cm
Cutting width: 51 cm
Self-propelling: Rear-wheel drive
Cutting adjustment: 1 lever
High rear wheels: Yes
The GreenBay GB-LM 51 H lawnmower is a powerful and reliable model featuring rear-wheel drive (self-propelled) and 4-in-1 functionality, ideal for maintaining large lawn areas up to 1600 sq. m..
It is equipped with the Honda GCVx170 OHV engine, a 4-stroke engine with Overhead Valves (OHV) and 170cc displacement, delivering a nominal power of 6 HP. This engine is renowned for its reliability, extremely low fuel consumption, and compliance with the most stringent European Union directives regarding emissions and noise. The connection between the engine and the blade is via a belt.
4-in-1 Versatility and Cutting System
This model allows you to utilize all four main cutting systems, ensuring high versatility:
- Collection: Features a spacious 60 L reinforced collection bag.
- Mulching: The Mulching kit is included as standard to finely shred the grass, returning it to the lawn as natural fertilizer. The cutting mode change is done quickly without needing tools.
- Side Discharge: Ideal for quick expulsion of large volumes of clippings, even tall grass (Side discharge deflector is included).
- Rear Discharge: Standard function for easily depositing the cut grass onto the ground behind the mower.
The cutting width is 51 cm (the deck width is 50 cm), and the cutting height is centrally adjusted via a single lever in 7 different positions, ranging from a minimum of 25 mm to a maximum of 75 mm.
Comfort and Equipment
The GB-LM 51 H makes mowing easier, faster, and more efficient thanks to its rear-wheel traction which improves performance on any lawn. Key features include:
- High rear wheels (230 mm) mounted on ball bearings to enhance maneuverability.
- Foldable handle to reduce bulk and facilitate transport and storage.
- Soft, rubber-coated grip for operator comfort during use.
General Features | |
| Model | **GB-LM 51 H** |
|---|---|
| Actuation | Gas/Petrol |
| Self-Propelled Type | **Rear-wheel drive** (Traction) |
| Cutting Type | **4 in 1** (Collection, Mulching, Side Discharge, Rear Discharge) |
| Chassis Material | Enameled Steel |
| Max Recommended Area | **1600 m²** |
| Collection Bag Capacity | **60 L** |
| Starting | Recoil pull start |
| Foldable Handle | Yes |
Motor Technical Data | |
| Engine Brand | **Honda** |
| Engine Model | **GCVx170 OHV** |
| Engine Type | 4-stroke, Overhead Valve (OHV) |
| Displacement | **170 cm³** |
| Nominal Power | **6 HP** |
| Effective Power | 4.8 HP |
| Fuel Tank Capacity | 1 L |
| Oil Tank Capacity | 0.6 L |
| Sound Emission Level | 96 dB(A) |
Cutting Apparatus Technical Data | |
| Cutting Width | **51 cm** |
| Cutting Height (Min-Max) | 25 mm - 75 mm |
| No. of Cutting Positions | **7** |
| Height Adjustment System | Centralized (1 lever) |
| Blade Type | Multi-function blade |
| Safety Blade Brake | Yes |
| Washing Connection | Yes |
Equipment and Dimensions | |
| Rear Wheel Size | **230 mm** (High wheels) |
| Front Wheel Size | 180 mm |
| Wheels on Ball Bearings | Yes |
| Handle Grip | Soft, rubber-coated |
| Net Weight | **28 Kg** |
| Product Dimensions (L x W x H) | 160 x 50 x 104 cm |
| Assembly Time | 15 minutes |
| Engine Country of Origin | Japan |
| Chassis Country of Origin | China |







