Grand River Transit has consistently purchased low-floor, wheelchair-accessible buses, principally from Nova Bus, Orion, and New Flyer, and these now form the entirety of the standard fleet. Most operating buses are less than twenty years old, though a few older buses are used primarily for high-school special runs. GRT has installed bicycle racks on the front of its buses in order to encourage the use of sustainable transport; all buses now have these racks. Bicycles are also allowed on-board Ion trains.