John Deere 100 Series Tractors are recommended for value-conscious homeowners. The D105 Tractor, with its overhead-valve engine, easy-to-use automatic transmission, and 42-in. (107-cm) mower is a great value. The powerful, single-cylinder engine has reliability features that include electronic ignition, cast-iron cylinder sleeve, full-pressure lubrication, replaceable oil filter, and large fuel filter. The automatic, continuously variable transmission (CVT) uses a reliable and efficient design concept refined on John Deere combines and lawn and garden tractors; the V-belt sheave diameter is varied to obtain the desired ground speed. The 42-in. (107-cm) mower is ready to side discharge, bag, or mulch. A wide range of equipment is available for handling snow and doing a variety of lawn care chores.