Let me see if I can answer this. I fixed gear bike can do everything a "normal bike" can do except free wheel ( meaning coasting). You can mount front and back brakes on most or you can have holes drilled for brakes if the frame doesn't come stock with them. I chose to ride brakeless so I control the speed and the braking of my bike with my legs only. I like the connection to the bike and love that I am relying solely on my own endurance to get around since I can't stop pedaling.
I always keep my fingers crossed and try to plan my moves far ahead since it does take me longer to stop though.
Attachment 169839
brakes