Full face (in good condition) is required on racetrack for a good reason.It's safer.I wear three lids.Open face Jitsie HT2 for trials competition,Convertible Scorpion for commuting on my Wing.And an Arai ff for longer touring.
Imho...3/4 lid is safe...ff is safer.
Imho...3/4 lid is safe...ff is safer.