I love my MX456 helmet and my air pump cheek pads street helmet...dunno the model. The MX helmet is pretty light, I like my Arai better, but this one was a fraction of the cost and stands up against it pretty stinkin' well!! Works great with my goggles....taking it off is a bit different as it catches my earlobes because of the share of the base. So I take it off slower with greater care and it's all good. It's a great warm weather helmet...good venting.