Sheene fell off at Quarterbridge on the second lap whilst lying second. He retired on the first lap of the production. Contary to popular opinion, Sheene didn't call it a day in 1971. He entered the TT in 1972, but an accident at Imola put him out of the event. He then decided that there was more publicity to be had in voicing highly controversial anti TT propaganda. My opinion of the man is unprintable!!!!