I'm going to be bringing my KLR home hopefully friday. It's the first bike I've owned in over 20 years. Now I need a helmet. Actually I plan to get 3, a 3/4 helmet for putting around town (small town), and a full dual purpose lid for when I leave town, and another full size for the wife when she's on the back, I live on a cop's salary, so I don't have a wad of money to blow. I know these motorcycle dealers have to make a profit, but I hate paying a premium price for something I can get a lot cheaper on-line. My biggest problem is figuring out what size to get. I do know it has to fit like a glove to do me any good. I'm sure I'm either a large or an XL. Any tips on figuring out my size?