I know this is not proper form, but I figure it would be too interesting to folks here to pass up. Helen Skelton is planning an attempt to cycle to the South Pole on a slightly odd looking all-terrain bike.
It rides on what are basically golf cart tires, has a suspension fork, 21-speed derailleur gearing, and rear disk brakes.
I'm personally a hair skeptical of the tubeless tires and the rear derailer that seems to clear the "ground" by only a few inches. But the folks doing this have a lot of experience.
Is what they're planning even possible? What will be their biggest problems?