Mark - Great pic! I guess they use all kinds of different helmets for different speeds of racing.
I never had a problem with my kneck wearing my Arai XD or Shoie Hornet (4 years on each). The Hornet doesn't work well with my KTM690, though, so I bought a street helmet. I think the sharp chinbar grabs the slipstream more than the peak, though. he Arai chinbar isn't hearly so sharp.
For me the best part of the XD and Hornet style is the very wide face opening. It feels a bit like an open face helmet. I bought the Nolan N43E for my KTM because it also has a wide face opening, but is a more aero shape for dealing with the buffeting I get on that bike.
Straight ahead and faster -Bo Weaver 1970
"There I was..." -Griffin Niner Three Hotel
"One day closer to a parade..." Jonny Gomes, spring training 2013