OK I know this question has been asked a million times by a million different riders, but once and for all, how the hell should a guy go about matching chain size to sprockets? I am currently running an EK Gold aftermarket chain with stock gearing, but I am considering either one down in front or -1 front and +2 rear. But how the hell can I figure out what size chain to get? I figure I'll need a new one but I have no idea if chains are all pretty much the same (as in, a 104 DiD chain would be the same as a 104 EK chain.........I dunno if it matters what brand you get) or if not, what kind and size of chain would I need to get to fit my new sprockets? I hate how people are always such huge advocates of gearing cuz it's the cheapest and easiest mod for speed and/or wheelie power, but it's such a pain in the ass! Any help?!?!?!