Like the tides, motorcycle model “platforms”—their basic engineering architecture—ebb and flow…or rather, flow and ebb. At launch they’re atop the world, often supported by global marketing or factory racing initiatives and bought by trendy early adopters. That’s the advancing tide, so to speak, of a product’s life span. Then come the peak sales years, upgrades, and improvements, which are akin to high tide. And finally, inevitably and irreversibly, the product becomes outmoded and updates, tweaks, and BNG (bold new graphics) can no longer keep it competitive. You guessed it: That’s low tide. And it’s also where shrewd buyers swoop in, like plovers racing to grab tasty sand crabs exposed by the falling tide.