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Home Lawnmowers Cylinder Lawn Mowers Allett Stirling 51 SPORT 20″ Cylinder Mower (Kit)
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Allett

Allett Stirling 51 SPORT 20″ Cylinder Mower (Kit)

£5,940.00 inc. VAT

The Allett Stirling 51 SPORT delivers professional-grade mowing for amateur sports arenas. Powered by EGO’s 56V battery, this 20″ cylinder mower provides a precision cut, robust performance, and unmatched versatility for clubs maintaining fine turf.

Currently out of stock - Available to back order (please contact for lead times)

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Description

Why buy the Allett Stirling 51 SPORT 20″ Cylinder Mower (Kit)?

  • 20″ (51cm) cutting width with a 10-blade cylinder for a precision finish.
  • Powered by the advanced EGO 56V battery system (10Ah battery & rapid charger included).
  • Ultra-Change™ system allows for tool-free cartridge swapping in under 15 seconds.
  • Variable speed rear roller drive with handlebar-mounted RotoShift™ control.
  • Precision HiteRite™ height adjustment from just 3mm up to 50mm.
  • Specifically designed for amateur sports turf like cricket squares, bowling greens, and croquet lawns.

The Allett Stirling 51 SPORT model is a high-performance battery-powered cylinder mower, meticulously designed for the unique demands of amateur sports arenas such as cricket clubs, bowling greens, and croquet lawns. It combines robust construction with Allett’s most exact mowing technology to date, offering professional-level results for clubs working with smaller budgets.

Professional Performance for Sports Turf

Engineered for precision, the Stirling 51 SPORT comes standard with a 10-bladed cylinder featuring a thinner front-edged blade, perfect for achieving the close shave required on fine sports turf. The machine’s SureBlade™ system incorporates a thicker, more rigid bottom blade for easier, more accurate setting and a consistently clean cut. The height of cut is managed by Allett’s HiteRite™ system, which provides stepless micro-adjustment from 3mm to 50mm, with a clear scale for perfect accuracy. Stability is further enhanced by the front roller locking kit, which reduces flex to maintain a consistent cutting height—essential for the precision demanded by bowls and cricket.

Advanced Battery Power and Control

At the heart of the Stirling 51 SPORT is the powerful EGO 56V battery system, renowned for its ‘Keep Cool’™ Technology. The mower features a dual-motor ProDrive™ system, with a powerful 1000W brushless motor driving the cutting cylinder independently from the rear roller drive. This allows the operator to travel across surfaces without the blades engaged. Forward speed is effortlessly controlled on the move via the handlebar-mounted RotoShift™ control, enabling the user to select the perfect pace for mowing or slow down for more intensive cultivation tasks.

Battery Model Run Time Charge Time
10Ah EGO Lithium-Ion (Included) Approx. 60 minutes mowing Approx. 40 minutes (with Rapid Charger)

Unmatched Versatility with the Ultra-Change™ System

The Stirling 51 SPORT is more than just a mower; it is a complete turf maintenance system. Allett’s patented Ultra-Change™ (UC) system allows the operator to switch from the mowing cylinder to a range of cultivation cartridges in under 15 seconds, with no tools required. This provides clubs with the ability to perform deep cultivation tasks for thatch control, renovations, and weed management. The system is compatible with all 20″ Allett UC cartridges, including an aerator, scarifier, lawn brush, verticut cartridge, and a dethatcher, making it a versatile investment for year-round turf care.

Ergonomic Design and Operator Comfort

Allett has designed the Stirling range to be perfectly balanced, with ergonomic, multi-position handlebars that are comfortable for any user. A single hand lever provides instant height adjustment. The quiet electric operation makes it pleasant to use and a favourite with neighbours. Additional features inherited from the Kensington range include an adjustable spring-tine lawn rake, a split rear roller with differential for easy turning, and the GlideDrive™ system, which allows the mower to be pulled backwards without resistance. The 70-litre front-mounted grassbox is lightweight and easy to empty.

Buy with Confidence from an Authorised UK Dealer

Sims Garden Machinery, with a trading history of over 100 years, is an established and authorised Allett specialist. Unlike online-only retailers, we offer complete aftersales support. Our trained sales staff can provide expert advice at our Stratford-upon-Avon showroom, ensuring you purchase the correct machine for your club’s needs. For local customers, we offer a free pre-delivery inspection (PDI) by our trained mechanics, followed by personal delivery and a full handover demonstration to ensure you and your volunteers are confident in its operation. This commitment to service ensures your investment is ready to perform from day one.

Not sure which machine or part is right for you?
Our team is here to help. Contact us today for expert advice.

Technical Specification

Cutting Width 51cm / 20″
Machine Width 655mm / 26″
Machine Body Length 580mm / 23″
Length with Grass Collector 870mm / 34″
Handle Height Min: 910mm (36″), Max: 1050mm (41″)
Height of Cut 3mm – 50mm (step-less adjustment)
Clip Rate (Variable) 138 – 389 cuts per metre
Cutting Blade 10-Blade cylinder (standard)
Cartridge System Accepts all 20″ Allett Ultra-Change (UC) cartridges
Cartridge Change Time Approx. 15 seconds (no tools required)
Cylinder Motor 1000W high-power brushless motor
Drive System Pro Drive: Independent drive for rear roller and cylinder
Battery System EGO 56V Lithium-Ion (10Ah battery included)
Battery Compatibility 5Ah, 7.5Ah, and 12Ah EGO batteries
Runtime Approx. 60 minutes mowing
Charge Time Approx. 40 minutes (with Rapid Charger)
Forward Speed Variable – 1.2 to 3.7 mph
Rear Roller Double section with geared differential
Front Roller Zinc-plated steel with scraper bar and locking kit
Handlebars 3 height positions, foldable, ergonomic grips
Grassbox Capacity 70 Litres
Grass Rake Adjustable spring-tine rake fitted as standard
Noise Level 90 dB(A)
Weight (Mower Only) 43kg
Weight (with Cartridge, Battery & Grassbox) 57kg
Warranty (Sports Use) 12 months (bowls, cricket, croquet)
Warranty (Commercial Use) 3 months

Why buy from Sims Garden Machinery?

Authorised Dealer

Authorised main dealer

We are authorised dealers for leading brands, meaning genuine parts, manufacturer-approved training, and warranty support you can rely on.

Real People

Real people, real support

No call centres. No ticket systems. Just a knowledgeable local team you can speak to when you need help.

Expert Advice

Expert advice — not pushy sales

Our team are trained mechanics and product specialists, so you get honest, practical advice based on how you’ll actually use the machine.

Since 1908

Established, independent family business

We’re a long-standing independent dealer with deep roots in the local area — built on reputation, repeat customers, and word of mouth.

Frequently Asked Questions

Frequently Asked Questions

What is the main difference between the Stirling Sport and the standard Stirling 51?

The Stirling Sport model is specifically configured for fine turf applications like cricket and bowls. It comes standard with a 10-blade cylinder (instead of the standard 6-blade) for a finer, lower cut. It also includes essential accessories for precision work, such as a height bar, grass gauge, and a locking arm for maintaining ultra-low cutting heights, along with a more powerful 10Ah battery for longer run times.

Is the Stirling 51 Sport suitable for a cricket square or bowling green?

Absolutely. It is designed specifically for amateur sports turf. Its ability to cut as low as 3mm, combined with its lightweight design, quiet operation, and ease of use, makes it an ideal choice for volunteers and groundskeepers maintaining high-quality surfaces like cricket pitches, bowling greens, and croquet lawns.

How long does the battery last and how quickly does it charge?

The mower is supplied with a 10Ah EGO 56V battery, which provides approximately 60 minutes of mowing time on a full charge. The included rapid charger can fully recharge the battery in around 40 minutes, minimising downtime. The system is also compatible with other EGO batteries (5Ah, 7.5Ah, 12Ah) if you have them already.

Can this mower be used for other lawn care tasks besides mowing?

Yes, one of its key features is its versatility. The Stirling Sport accepts all 20-inch Allett Ultra-Change (UC) cartridges. This allows you to easily switch to a scarifier, aerator, brush, verticutter, or dethatcher for comprehensive, year-round turf maintenance. The tool-free cartridge change takes only about 15 seconds.

Is the Allett Stirling Sport easy for club volunteers to operate?

Yes, it has been designed with user-friendliness in mind. It features a simple push-button start, variable speed control (RotoShift™) on the handlebars, and low vibration levels. Its lightweight and ergonomic design make it comfortable and straightforward for volunteers of all ages and experience levels to use effectively.

User Manuals / Downloads


View Allett Brochure

Additional information
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Allett

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About Allett
At Sims Garden Machinery, we sell a range of Allett Mowers, famed for their high quality. We stock both petrol and battery-powered walk-behind mowers. Built around a cylinder design, these machines offer an unrivalled cutting performance, for use in domestic and commercial environments. We also stock a range of additional cartridges that can be attached to Allett Mowers, for use as verticutters or scarifiers. Our garden machinery can be delivered across the UK, with a skilled member of our team assembling it and demonstrating correct usage to you upon arrival. This ensures the longevity of all equipment purchased from Sims Garden Machinery. If you have any queries about our range of Allett Mowers, talk to a member of our expert customer service team today. Sims Garden Machinery is a family run business based in the UK, with over 100 years of experience selling gardening equipment. Our team possesses a deep understanding of our garden range.
Shipping & Delivery

FREE PDI, DELIVERY & HANDOVER

We offer a free delivery service for all machines within a 30 mile radius. Not only that; we build, inspect and run up every machine prior to delivery. Making sure you get a fully functional machine that is set-up and ready for use. On delivery we will run through with you any instructions & maintenance advice so you are comfortable with your new machine.

NATIONAL DELIVERY

  • Each machine will be tested prior to delivery.
  • Orders will be sent out via either ThePalletNetwork or DHL insured service.
READ MORE
SKU: A5-ALLETT STIRLING.. Categories: Cylinder Lawn Mowers, Lawnmowers Tag: NS - Non-stock
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    20/21 The Waterways, Stratford-Upon-Avon, CV37 0AW
    Phone: 01789 205671
    Email: info@simsgardenmachinery.co.uk
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    Allett Stirling 51 SPORT 20" Cylinder Mower (Kit)

    Allett Stirling 51 SPORT 20″ Cylinder Mower (Kit)

    £5,940.00 inc. VAT

    Currently out of stock - Available to back order (please contact for lead times)

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