York Region Transit 224-233

York Region Transit 224-233 are Orion 05.501 built in 2002, and acquired by YRT in 2003. They were originally GO Transit 1164-1173, and were bought in August 2003 with the transfer of the Bayview and Yonge 'C' services to YRT. They were renumbered into the standard YRT numbering, with a 2 for its year of make (2002).

227-229 have one window with a tip-in transom on each side. As all these buses were built with windows that don't open, this is likely to help with ventilation if the air conditioning fails.

When these vehicles were first introduced to YRT, they were mainly restricted to 91 Bayview and 99 Yonge 'C', the same routes they operated on with GO Transit. Today, 225-229 are normally found on 5 Clark, 7 Martin Grove, 12 Pine Valley, 13 Islington, 20/20A Jane, 21 Vellore Local, 23 Thornhill Woods, 26 Maple Local, 87 Autumn Hill, and school specials during weekdays. 230-233 are normally found on 14 14th Ave, 16 16th Ave, 18 Bur Oak, 42 Berczy, 83/83A Trench, 86 Newkirk-Red Maple, Richmond Hill GO Shuttles, and school specials during weekday rush hours only.

Details
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 * colspan=2 align=center| York Region Transit active fleet