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







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