Listing down all Dos and Donts
Riding during rain:
450 is fully protected to drive during the rain. Its dashboard is IP65, Battery Charger is IP65, Motor is IP65 and Battery is IP67.
However do note the details of IP Rating,
6: No ingress of dust; complete protection against contact (dust tight). A vacuum must be applied. Test duration of up to 8 hours based on airflow.
5: Water projected by a nozzle (6.3 mm) against enclosure from any direction shall have no harmful effects.
7: 1 m depth Ingress of water in harmful quantity shall not be possible when the enclosure is immersed in water under defined conditions of pressure and time (up to 1 m of submersion).