Most of our letters were more concerned about fun factor than they were about the trophy quotient. So this is what we learned about how much the size of the bike matters: It should matter to you, since there are distinct and concrete reasons to choose one size and type of bike over others. There is not one size that is simply best. Here are the findings in a nutshell.So as we insisted in the beginning, we can't and won't tell you what to buy. We've tried to explain the pros and cons of each bike, and in the opinion section, we're happy to tell you which bike we'd buy! 450F. In many ways a ...