Ask people why they ride their bicycles to work and they'll tell you it's because they enjoy the physical exercise, the exertion, a morning workout that gets them awake and feeling sharp for their 9am meeting. Why, then, would you spend 10 grand on a bicycle that makes cycling easier and less strenuous, giving you less exercise per mile? We reckon this guy has the right idea - he's built a modern day penny farthing called the Monsterbike using a massive monster truck tyre as the front wheel. Sure, it seems to have a top speed just above walking pace, and it looks like a heck of an effort to ride - but the exercise factor is huge, and you'll never feel intimidated in traffic again!