Kubota RSP 155 rotavator, tiller. Fits most tractors. Garage kept 66 inches wide. Hardly used. $1800 Kubota RSP 155 rotavator, tiller. Fits most tractors. Garage kept 66 inches wide. Kubota Tractor with Rotovator/Tiller RSP 155 High speed tiller can till large gardens in minutes. Rotovator, rotary tiller is adopted middle gear transmission system, mounted with the tractor of 12-80HP. disc plough, disc harrow, share plough, rotary tiller, rotary stubble crusher, soil ridger, soil loosener, slasher, gearbox, plough and harrow discs, cultivation