I'm one of the fatheads (7 3/4), so the Bells have worked well for me. My Sport expired last season and I have always gone by the "$10 head=$10 helmet" philosophy, so I anted up for one of the Bell M3 helmets. Comfortable fit for me, but the light weight really blows me away. The M3 feels like it weighs 1/2 of my old Sport.