The company recommends against mounting an iPhone on a motorcycle, as the vibrations may be transmitted via the bike’s handlebars and chassis. Long-term direct exposure to high-amplitude vibrations within certain frequency ranges may degrade the performance of these systems and lead to reduced image quality for photos and videos. It is recommended to avoid exposing your iPhone to extended high-amplitude vibrations.
Apple says if you’re planning to mount your iPhone to a scooter or a moped, it recommends using a vibration-dampening mount to lessen the risk to the phone and its camera system.
It recommends against mounting an iPhone on a motorcycle