Norm Posted July 2, 2007 Report Share Posted July 2, 2007 I am looking at buying an alpha 400 helmet as an upgrade from my SPH-4. I don't really understand how they are sized for your head though? I've read that one size is suppose to fit all. I also wanted to know if anyone has worn both the alpha and the sph-4 and which is liked best. Thanks Quote Link to comment Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.