Role A bike team will not be able to do all that a field team can do, nor will they be able to do all a motor vehicle can. The bike role at any search and rescue mission is limited too hasty and containment tasks.
Bikes are able to travel on trails and roads much quicker than a foot team.
Because of this, a trail or road can be patrolled repeatedly. Bikes patrolling in opposite directions will give more coverage than a team going only one way at a time. If a subject were evasive, a motor vehicle can be heard and avoided. A bike is harder to hear, and many police bike units use this advantage when approaching suspicious subjects. A motor vehicle can have lights and sirens on it.