Originally Posted by manan_in_2000

Staggered formation: a formation of motorcyclists in a group in which the Lead Bike rides in the left track of a lane, the next bike in the right track(slot), and the next bike in the left track, and so on. Bikes in a group generally maintain a minimum interval of two seconds travel time between bikes in the same track, and one second travel time between each bike in the group.

Slot: any position within a group in the right track of a lane, farthest from oncoming traffic.