I know if I get a decent road bicycle I can go a consistent 50km/h (30mph) without too much effort. (Something that would remove a major advantage of a car for me). My worry is how safe is going that fast. Does anyone else go that speed here consistently? Can you properly brake and maneuver in that speed bracket? Do you have way more close calls then you did before when you bicycled at more typical speeds of 20/30kmh? Does bicycling in that speed bracket push up the fatality/injury rate to that of a motorcycle?