In one example, a continuous track transport system for an irrigation system is provided that includes a continuous track and a gear train connected with the continuous track and operable to transmit an input torque to the continuous track so as to effect movement of the continuous track. The gear train includes a drive gear having an interface that is connectible to a motor of an irrigation system chassis, first and second drive wheels connected to the continuous track, each including an interface that is connectible to a corresponding interface of an irrigation system chassis, and first and second driven gears engaged with the drive gear, the first and second driven gears being mounted to respective drive wheels such that each driven gear rotates in unison with the associated drive wheel, and one or more gears of the gear train are plastic.
