Do these bicycles have brakes?
 

Yeah, do they?

Thank you for spelling "brakes" correctly.

Pro road bikes?
Yes.

Track bikes, no

Thanks. Do they prefer 1 style? I remember a story about a track bicyclist who forgot his gloves on a short trip to the store, was barreling down a steep hill, saw traffic at the bottom, braked with his hand.

Some teams have rim brakes others have disc brakes