iPhones and big bikes don't mix. Clamping your iPhone to a big bike is likely to lead to camera damage!!
www.bbc.co.uk
Apple iPhone risk from powerful motorbike vibrations
Camera performance can "degrade" if attached to high-volume, high-power motorbikes, Apple says.

apparently weld splatter and mobile phone screens are not compatible. Still works, looks crap but a replacement cost of £225 for just the screen!!!! means that it will be staying that way!
