· 1973 Unverified Roper K521 Sprint Roper K521 Sprint — Riding lawn mower · 5 hp. Reference specifications; pending source verification.
The Roper K521 Sprint is a lawn tractor rated at 5 hp — making it one of the more compact options in its class. The K521 Sprint was manufactured from 1973 to 1976. Under the hood is a 1-cylinder petrol air-cooled engine, driving through two-wheel drive with a 3-speed gearbox. Listed weight is 133 kg, and it is aimed at jobs of around up to 200 ac. Recorded specifications in UK and US units are listed below.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Richest spec table
36 rows
Production years
1973-1976
No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.
Specifications Description Maintenance Troubleshooting Ownership Reviews Q&A Docs & sources
Hover a source tag to verify UK metric US imperial
Manufacturer Roper Reference
Riding lawn mower Reference
Built in Orangeburg, South Carolina, USA Reference
Two-wheel drive Reference
Manual steering Reference
Open operator station. Reference
K522 electric start Reference
K521 manual start Reference
5HP Briggs & Stratton 206cc 1-cyl gasoline Reference
Fuel tank 1.9 L Reference
Briggs & Stratton 130902 Reference
gasoline Reference
1-cylinder Reference
air-cooled Reference
Displacement 12.57 ci Reference
Bore/Stroke 65 x 62 mm Reference
Power (gross) 3.7 kW Reference
Starter type manual recoil Reference
3-speed Reference
Gears 3 forward and 1 reverse Reference
Wheelbase 102 cm Reference
Weight 133 kg Reference
Front tire 10.5x3.5 Reference
Rear tire 12.5x4.1 Reference
Lawn/turf front 10.5x3.5 Reference
Lawn/turf rear 12.5x4.1 Reference
Length 146 cm Reference
Width 81 cm Reference
Height 95 cm Reference
Shipping weight 133 kg Reference
26" mid-mount mower deck Reference
Type mid-mount Roper Reference
Type 1-blade with manual lift Reference
Cutting width 66 cm Reference
Cut height 3 to 7 cm Reference
Cut positions 5 Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.
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Request a quote Who it suits Operation size Up to 200 ac
Budget class Entry
Is it right for you? Operation size Under 200 ac 200–1,500 ac 1,500+ ac
Need a front loader? Yes No
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