Behind the scenes: Mountain bike self-portrait under the Milky Way

Here in Marlborough, New Zealand, I've been able to indulge two of my passions: night sky photography and mountain biking. But my time in this part of the world is almost up, and lately I've been wondering how I can combine these. So a couple of weeks ago I did a bit of location scoping around the outlying hills. I jogged to the top of the mountain bike park, and ended up at a spot that I might be able to make something of. Back in front of the PC I consulted the planetarium software, Stellarium...