With a flip flop rim we will have the possibility to change the pedal style just by inverting the rear wheel, these rims are easy to identify, because they have both types of sprocket. We can go from fixed style (fixie) to free (Single Speed), if we put it in free style or also known as neutral would behave like a normal bike, in this case we would need the use of brakes.
Most of our fixie bikes come with a rear wheel that has a gear flip-flop.
And you, would you dare to use a bicycle without gears?
Do you think you can climb "that street" with a fixed gear?