It's a small thing, really: a thin, stubby blade cast into the tip of the BMW S1000RR key, and every new BMW motorcycle key I've seen lately. But if you're ever tried adding two clicks of rebound damping with a dime – not quite thin enough – because the tool kit takes too long to dig out and going like stink in the middle of nowhere with a screwdriver in your pocket doesn't feel quite right, it's a big deal. Maybe even brilliant. BMW has always been big on small details, and there are more. Bezels around the respective damping adjusters are marked. You can see exactly where you are without bottoming the screw and backing it out again. And there's a spanner in the tool kit to adjust shock spring preload. The net effect could be bigger than the sum of those details.
Making suspension easier to adjust increases the odds that you'll go beyond the owner's manual recommendations and take the time to actually adjust it, increasing the odds that you'll be happy enough with the bike to tell your friends and maybe even buy another one someday. Maybe that's a stretch, or maybe it isn't. I'm guessing a few extra lines of code in the key-machining program, a few numbered adjuster bezels and a spanner didn't cost BMW all that much. But if that stuff makes squeezing out everything the engineers put into something like this on a Saturday morning, those bits pay for themselves every time that key slips into the ignition…or a damping adjuster.