For a number of years, OC Transpo has carried bicycle racks on some routes as a part of the "Rack & Roll" campaign. These racks carry up to two bicycles at the front of the bus and fold up against the bus when not in use. Although it started only on three routes, this service has been expanded to include routes 12, 61, 85, 88, 94, 95, 97, 99, 101 and 106 with bike racks appearing on other routes from time to time. As well, all D60LF and D60LFR articulated (60-foot long) buses, all Alexander Dennis Enviro500 double-decker buses, and Invero buses 4427–4526 (inclusive) have bike racks. Traditionally, the racks have been available only between April and October, and there has been much debate over continuing the program throughout the year. However, cyclists may use the racks at any time, on any bus that is equipped with a rack (including routes that don't normally offer them), provided there is room for the cyclist in the bus. The O-Train is bicycle accessible year-round.