Join Date: Dec 2016
Location: Ashland, OR, USA
Yeah, there's a lot of "ancient wisdom" floating around about engine break-in. But modern engines are built to tighter tolerances and use better materials than older engines. Following the owner's manual instructions, as Sidewinder says, is your best bet. But absent that, my dealer's advice on the last two, modern BMWs I bought was pretty straightforward: run the bike up and down through the rev ranges and gears until the first service (600 miles), and avoid lugging the engine or running long stretches at the same RPM. There's no need to baby it. In fact, making the engine work fairly hard will help seat the piston rings and avoid excessive oil use. But don't wring its neck. Be moderately aggressive, if that makes sense.
I've followed my dealer's advice on my last two BMWs, and I've never had to add any oil between 6,000 mile service intervals on either of them.