Originally Posted by
RZetlin
Are there any recommendations for rust protection sprays for the bike like WD40?
For spraying inside the frame tubes? That's actually not a bad application for WD-40. Others have also mentioned Boeshield, which was developed by Boeing for corrosion protection, it may be better, do a quick search and you'll find their website.
The above can't hurt, but IIRC, your frame is aluminum, so less vulnerable than unpainted steel inside the tubes.