I apologize in advance for my ignorance if I am wrong but I think BMW way back when, blew it when they designed the battery installation on my 1983 R100RT. I had to remove the air box to get the battery out. It wouldn't go aft or to the side only forward . Duh.... Any of you airheads out there find a smaller battery that fits or a mod to do or is that the way it is? Good thing I don't foresee taking it out much. It had to come out this time to clean the battery box up. It was all rusty a looked like poopy. And anyone know of a good acid proof paint? I know there is some in the aviation industry but at $200 hundred a quart. I suppose if I replaced the battery with a sealed one then the paint is mute point. Anybodys thoughts?