As I stand on the pegs, the big boxer thumping beneath me, all the lessons of the last two days click into place. Riding in second gear, two fingers feathering the clutch, I coax the big Beemer around on a trail that looks like it was built for mountain bikes. A massive gravel mound looms before me, so I give the bike a shot of gas as the suspension compresses and we launch up the impossibly steep bank. Applying the brakes, I stop the bike on a narrow ledge before sliding my right knee towards the cylinder head, butt off the seat, and turning the big GS 90 degrees. With some light pressure on the front brake and my foot hovering over the rear, I execute a slow, measured descent under the watchful eye of Ross McKinney, our lead instructor for the day.