Run by the Aston Manor Road Transport Museum, the event began in 1977 and has continued each year since with the exception of 2000, in which it was cancelled due to a national fuel shortage.

Over £25 million was spent on CCTV coverage, bus priority measures, new shelters with electronic information displays and new low-floor buses.

The 11A was one of the routes chosen for service extras when National Express West Midlands withdrew their MCW Metrobus vehicles on 24 July 2010.

[6] The route serves 233 schools, colleges or universities, 69 leisure and community facilities, 40 pubs, 19 retail centres, six hospitals, and one prison.

The outer circle is the traditional route for the Free Radio Birmingham Walkathon, a sponsored walk which raises funds for charity.

[19] As a temporary measure introduced on Sunday 4 July 2021, the service was split in two due to lengthy delays caused by roadworks at Perry Barr.

[20] On 11 November 2008, (starting at 11:00), humourist Jon Bounds spent eleven hours travelling the route, documenting his journey online, using Twitter, Facebook and a blog, elevenbus.co.uk.

[21] In October 2009 Kevin Beresford, a 57-year-old resident of Birmingham, created a calendar dedicated to the anti-clockwise portion of the route.