Claas UK revealed its new Arion 400 Series tractors to the UK press at its base near Bury St Edmunds, Suffolk, on September 24. There are three new models - the 410, 420 and 430 - with power outputs of 100-130hp. At 4.44m long and just 2.74m high on 34-inch wheels, these new tractors are aimed squarely the livestock sector and smaller arable units.