... -stage clutch Advantages and Characteristics of 40-55 series tractor: 1. Equipped with famous brand engine, with good ... .5. Can be equipped with ROPS, canopy, cabin, front/rear ballast, loader, and so on 6. ... Tire size: front tire 8.3-20, rear tire 12.4-28 ... .7.Can match implements such as Front end loader, Backhoe, Plough, Harrow, Trailer, snow blower, and so on. 40hp tractor