Not sure I spelled the name correct but had several questions that some of you actual users can help us with. One of my riding partners has an XP 850 and he doesn’t have the range the rest of us do. It seems that most riders are mounting these on the front. Is this better than the back rack and if so why? I don’t believe he would want over two gallons. Also do they make any type of "Lock and ride attachments" for these? Thanks in advance