Excluded Class of Users, or an
excluded user group, that they are not allowed into nature simply because they choose to worship on two wheels. The fallacy - they have the same access as other two-footed folks. MTBikes are objects, with no intrinsic rights.
civil disobedience(i.e. poaching trails). In fact, true civil disobedience is done openly with advance notice. Mountain bikers do it secretly, without notice.