Hi Roy,
26 miles long, about two and one half hours duration and yes, a great Sunday afternoon treat to go all the way around. I used it mainly from King's Heath to Cotteridge, or Selly Oak or Harborne on the outer ring and from King's Heath to Swanshurst or Acocks Green or Stechford on the inner ring, depending which relative we were visiting or as I said before, going with my dad to his depot at Harborne.
Here is a shot of the back entrance to Harborne garage in Lonsdale Road.
Brian