Blade for lawn tractor lawnmower mower COMPATIBLE WITH: Pro Rider 14 Features: Length: 481 mm Centre hole diameter: 24 mm Side hole diameter: 8.1 mm Side hole centre distance: 48 mm Code : 22 -554 Reference code : 506 96 97-01 Husqvarna and Partners [AYP, FLYMO, MARAZZINI, MURRAY, NOMA]