A system is provided that permits access to an air box in a straddle type vehicle (e.g., a motor scooter). The system comprises a movable seat that is capable of rotating such that a user can access the air box disposed at least partially beneath the seat. The air box comprise an air cleaner that has an air filter capable of being detached and pulled at least partially through an opening in an upper portion of the air cleaner. As a result, the air filter can be removed easily in order to be cleaned or replaced. The system can also include a fender which is capable of rotating about a generally horizontal axis.