Mick Foulkes

Absolutely 100%. It was legal at least up to 1973. Passed my bike test in 1971and spent many a time as pillion to a learner, completely legal. Passed my car test in 1973. Nobody has answered the question when did it become illegal or is it similar to towing a trailer, which is okay for those that had a full vehicle licence in 1973 but not now.