Hayter Harrier 56 VS Self Propelled LawnmowerThe Harrier 56 is our largest pedestrian rear roller rotary lawn mower. With an impressive 53cm rear roller, it's the widest in its class and ideal for lawns up to 1000 square metres (approximately the size of a 5 a side football pitch). Setting the mower to match your walking pace is easy, as the intuitive Sens a Speed system can be set between 1. 0 2. 9mph depending on how much you push to drive lever. The split rear roller allows you to turn