Dyl says:
SlimRider, what is the different between single speed and fixed gear bike?
With a fixed gear bike, you have to constantly pedal and you can't coast down a hill...
With a single speed, you can stop pedaling for a while, take a break and coast downhill.
With a fixed gear bike, while your bike is going faster and faster downhill, your feet keep pedaling faster and faster too!
+1 No1mad
Yeah, what No1mad said!