We generally ride in a stagger formation for safety reasons.  The minimum recommended spacing to the bike directly in front of you should not be less than two seconds (the two second rule).  The bike in the lane to your left or right should not be less than one second ahead of you.  You will find that two seconds is a long distance when riding at highway speeds.  That is it's a long distance when everything is going well.  When things go wrong, however, two seconds distance is gone in the time it takes to figure out you are in trouble.

The two second rule is a rule of thumb should try to adhere to this rule when possible, especially at highway speeds.  There are times, however when it is best to squeeze together while in city streets & while slowing for a stop.  This will help prevent cars from entering the group.

You should only ride with your headlight on keep your “running” or “passing” lamps off.

The lead Road Captain cannot see with a mirror full of lights.