Cobra Fortis 20B 51cm / 20" Self-Propelled Petrol Cylinder Lawn Mower - FORTIS20B

Cobra Fortis 20B 51cm / 20" Petrol Self-Propelled Cylinder Lawn Mower – FORTIS20B

The Cobra Fortis 20B is designed for gardening enthusiasts maintaining medium to large lawns who require a precise cylinder cut and a consistently striped finish. Built with a strong steel cutter deck and a precision-engineered cutting system, it delivers a clean, scissor-like cut suitable for ornamental and domestic lawn care.

With a generous 51cm cutting width and self-propelled single-speed drive, the Fortis 20B offers efficient coverage while remaining stable and well balanced in use. The steel front roller and cast, ribbed split rear roller allow accurate edging and produce the classic striped appearance associated with cylinder lawn mowers.

Powered by a Briggs & Stratton XR550 Series™ petrol engine, the Fortis 20B provides dependable performance with easy recoil starting. The blade brake clutch (BBC) allows the cutting cylinder to disengage while the engine continues running, improving convenience and safety when stopping to empty the grass box or move between lawn areas.

Key Features:

• Six-bladed cutting cylinder: Precision-ground blades delivering 79 cuts per metre for a fine, striped finish.
• Wide 51cm cutting width: Ideal for efficient mowing of medium to large lawns.
• Self-propelled drive: Single-speed transmission reduces operator effort.
• Blade brake clutch (BBC): Disengages the cutting cylinder without stopping the engine.
• Interchangeable cartridge system: Allows the cutting unit to be removed and replaced with optional lawn care attachments.
• Steel front and cast split rear rollers: Provides defined lawn stripes, improved manoeuvrability and accurate edging.
• Low cutting heights: Adjustable from 6mm to 30mm via a simple single-screw system.
• Large grass collector: 75 litre front-mounted grass box for efficient debris collection.
• Folding ergonomic handles: Tool-less adjustment for compact storage and easy transport.

What's Included:

• Cobra Fortis 20B petrol cylinder lawn mower
• Six-bladed cutting cylinder cassette
• 75L front-mounted grass collector
• Operator’s manual

Engine & Fuel Information:

• Engine: Briggs & Stratton XR550 Series™
• Engine type: 4-stroke, air-cooled, OHV
• Engine displacement: 127cc
• Rated power output: 2.6kW @ 3,600rpm
• Horsepower: 4hp
• Fuel type: Unleaded petrol (E10 compatible)
• Start method: Recoil
• Typical use: Ornamental and domestic lawn maintenance

Compatible Accessories & Attachments:

• Verticut cassette
• Scarifier cassette
• Dethatcher cassette
• Aerator cassette
• Lawn brush cassette
• 10-blade cutting cylinder
• Sports turf verticut cassette
• Sports turf brush cassette
• Front grooved roller
• Turf rake
• Front wheel kit

Specifications:

• Brand: Cobra
• Model: Fortis 20B
• Power source: Petrol
• Drive: Self-propelled, single speed
• Cutting width: 51cm / 20"
• Cutting height range: 6mm – 30mm
• Cutting height adjustment: Single screw
• Cuts per metre: 79
• Cutting cylinder: 6 blade
• Grass collector capacity: 75 litres
• Front roller: Steel
• Rear roller: Split, cast ribbed
• Fuel tank capacity: 1.9 litres
• Oil capacity: 0.6 litres
• Guaranteed sound power level: 96dB(A)
• Weight: 89.2kg
• GTIN: 5055485038678

Warranty Information:

• Domestic warranty: 2 years
• Commercial warranty: 1 year
• For full warranty terms and product registration, please visit: https://cobragarden.co.uk/register-your-machine/