When five BMW R nineT models are still not enough

The R nineT has been a smash hit for BMW. It handles great, straight out of the box, and responds well to a little fiddling. And despite being only three years old, the platform has already morphed into five different models—the base Roadster, Pure, Racer, Scrambler and Urban G/S. That should be enough to satisfy most folks, but there are some who want an even cleaner aesthetic than you get with the Pure. And if you have the skills or cashflow to really go deep, the results can be spectacular. This razor-sharp R nineT is proof: The air-cooled boxer twin...