My RD rarely sees sunlight. Like many bikes it has a cover, and kept in a garage. It only really sees sunlight when I take it for a run of about an hour or two every 3 weeks.
I have noticed yellowing of the body work, mainly seat and cowl area. Realizing these bikes are 33 years old now, but have other owners noticed this change on their R’s
Mine’s ok but it was painted a few years ago, but I know of another C that has lived in a lounge room for most of its life, and that is quite dull and areas of yellowing.
It’s an age thing….haha I should know…