Showing my ignorance here, but exactly what is the point of a fixed/single speed bike?
Firstly, I am assuming it is exactly what it says it is (der!!)
But, doesn't it just make cycling more awkward i.e what happens when you are going up or down a bit of a slope ?
I thought that that was the whole point of having gears - to give you a nice, smooth easy ride.
So many questions ...........