Apple has published a new support document on its website warning users that cameras on their iPhone devices can be damaged when attached to high-powered motorcycles due to the ‘high amplitude vibrations’ of their engines.

In the document, Apple specifically points to the optical image stabilization (OIS) and closed-loop autofocus (AF) technologies inside its latest iPhone device and notes both of these are susceptible to performance degradation over time when exposed to the ‘extended high-amplitude vibrations,’ such as those put through the device when it’s attached, via a mount, to a motorcycle. Specifically, Apple notes the OIS systems inside the iPhone 6 Plus and later and the AF systems in the iPhone XS and later are the modules affected by these issues.

‘High-power or high-volume motorcycle engines generate intense high-amplitude vibrations, which are transmitted through the chassis and handlebars,’ says Apple. ‘It is not recommended to attach your iPhone to motorcycles with high-power or high-volume engines due to the amplitude of the vibration in certain frequency ranges that they generate.’

Even smaller motorized vehicles, ‘such as mopeds and scooters,’ can lead to problems, despite ‘comparatively lower-amplitude vibrations,’ according to Apple. To lessen the risk of damage on these devices, Apple suggests using a vibration dampening mount and ‘avoid regular use for prolonged periods.’