Good memory!!
That bike is indeed a 'kids bike' with alloy 'road bike' cranks & tiny bars etc it is also an mx111 i think? (if thats what the standard bike was in 81?)
The reason that bike is in the picture is because despite the caption it ISNT me, it is in fact my younger team mate Gary Willats who was 12 or 13 then!
Easy mistake though as we both ran the same number then & there were only two of us on the team with that kit.