Stopping distance is a big factor.
20mph is 12 meters / 40 feet. 30 mph is 23m / 75 feet and so on. Makes a massive difference if the person in front hits the brakes, someone steps out onto the road, you didn't see that cyclist in your "blind spot"
@Hamham started
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Stopping distance is a big factor.
20mph is 12 meters / 40 feet. 30 mph is 23m / 75 feet and so on. Makes a massive difference if the person in front hits the brakes, someone steps out onto the road, you didn't see that cyclist in your "blind spot"