Allett Stirling 51 (20'') SPORT Battery Cylinder Mower
Battery and charger included.
The Stirling 51 SPORT is Allett's professional-grade battery cylinder mower built for amateur sports clubs and the most demanding home lawn enthusiasts. Designed for cricket wickets, bowling greens, croquet lawns, and tennis courts, it delivers the precision surface management these surfaces require — with the same UC cartridge system that makes the Stirling range the benchmark for home lawn care.
Where the standard Stirling 51 is set up for lawn enthusiasts, the SPORT spec takes it further: a 10-blade carbon steel cylinder is fitted as standard for closer cuts down to 3mm, a higher-capacity 56V 10Ah battery extends mowing time to approximately 60 minutes per charge, the EGO Rapid Charger is included (full charge in ~40 minutes), and a front roller locking kit is fitted as standard for consistent height of cut and reduced flex on low-cut sports surfaces.
The same hallmark Stirling technology is all here: dual brushless ProDrive™ motors that isolate roller and cylinder so you can traverse without the cylinder engaged, UltraChange™ cartridge swap in under 15 seconds with no tools required, RotoShift™ variable speed control adjusted on the move, HiteRite™ micro height-of-cut selection, and the GlideDrive™ system so the mower pulls back with zero resistance. (Patent GB2613951)
Compatible with all 7 UC cartridges: Verticut, Scarifier, Aerator, Lawn Brush, Groomer, Dethatcher, and the 6/10-blade cylinders.
What's included
– Stirling 51 SPORT power unit
– 10-blade UC cylinder cartridge (fitted as standard)
– 70 litre grassbag
– 56V 10Ah EGO battery
– EGO Rapid Charger
– Front roller locking kit
– Height bar
– Allett Grass Gauge
Specifications
Recommended Use: Cricket wickets, bowling greens, croquet and tennis courts, fine turf sports applications
Cutting Width: 51cm / 508mm / 20"
Overall Machine Width: 655mm / 26"
Machine Body Length: 580mm / 23"
Machine Body Length With Grassbag: 870mm / 34"
Min Handle Height: 910mm / 36"
Max Handle Height: 1050mm / 41"
Cylinder: 10-blade carbon steel — fitted as standard
Height of Cut (10-blade): 3mm – 20mm
Height of Cut (6-blade optional): 5mm – 50mm
Cuts Per Metre: 138 – 389
Cultivation Depths:
Verticut: –10mm
Scarifier: –10mm
Aerator: –14mm
Dethatcher: –14mm
Cylinder 10-blade: 3mm–20mm | 6-blade: 5mm–50mm
Motor: 1000W dual brushless ProDrive™ motors
Battery: 56V / 10Ah / 560Wh — included. 7.5Ah and 12Ah available via EGO.
Battery Life: Approx. 60 minutes mowing (10Ah battery)
Charger: EGO Rapid Charger included — full charge in approx. 40 minutes
Variable Drive Speed: 1.3 – 5.5 km/h (0.8 – 3.4 mph)
Grassbag: 70 litre wire frame fabric grass catcher
Front Roller: Steel / zinc-plated with scraper bar + locking kit fitted as standard
Rear Roller: Split steel with geared differential drive. GlideDrive™ for resistance-free reverse.
Cartridge Change: 15 seconds — no tools. UltraChange™ (Int Pat App WO 2023/079275)
Sound Pressure at Operator: 90 dB
Vibration Emission: 1.7 m/s²
Weight: 57 kg / 126 lbs (with 10-blade cartridge, battery, and grassbag)
Warranty: 1 year parts and labour for sports clubs (bowling green, croquet, cricket). 3 months for commercial usage. 2 years for homeowner use.
Patent Application: GB 2 613 951
UltraChange™ — Int Pat App WO 2023/079275