Originally Posted by
krome
I wasn't advocating using a bmx, I was saying that it isn't the wheels that are necessarily slowing you down. They make bikes for average adults that have small wheels and can still go fast, a bmx bike with 20" rims isn't something I consider designed for a average adult to ride any distance. I certainly wouldn't choose it. This is what I meant about "it isn't the wheels, it's the bike".
And I understand that, but I'm pretty sure that something like a folding bike is going to have to be in a slightly higher ratio just to put out the same speed as a road bike in a lower gear, mostly because of the wheels. Folding bikes have a great design and concept, and their intentions and purpose are awesome, I just wouldn't ever want to go very far with smaller, more inefficient wheels.