Originally Posted by
noglider
Your question indicates you may not have an idea of how densely populated New York is. I can't make an accurate estimate, but I would say that on foot, on bike, and in motor vehicles, I see literally thousands of faces a day. I won't even know when I see a duplicate face from one day to the next.
Care to hazard a guess as to most common wheelsize? (I'd be guessing 26" mtb size myself)