It was Linus Gerdemann in Stage 7:
"He came close to colliding with a race motorbike close to the summit, dodging round it at the final instant, then flirted with danger on the descent, cutting each corner to the limit, and adopting an extreme position in search of aerodynamics, akin to a downhill skier's tuck, but with his groin on the top tube. It looked risky in every way, not least for his chances of fatherhood."
From the UK Guardian site.
Now, lph, don't be trying this at home. You promised...