I have a pair of Alpinestars that are really Squeaky ,They are that bad i had a run down to Demon Tweeks last weekend and had to leave the shop out of embarrassment Have you Dudes Got:finger: the Cure?
I had that with a pair of Daytona boots. They said it was a fault with the insoles, so sent me another set - cured the problem. If they are new ish, go back to the supplier and get them to sort it out. If older, try taking out the insoles and then glueing them back in
YeP silicon spray is good stuff My seat squeaks on my blade so wiped some on he part that rubs the tank and seat unit and it's sorted
Get the silicon spray with PTFE, the treatment lasts longer. I hate WD40, the smell makes me feel sick so I use GT85. Does all the same stuff, doesn't make you barf. The strange thing is Halfords only keep it with their bicycles (bloody horrid things).
I use wd40 as aftershave when I run out of sex panther. It's illegal in 9 countries. Made out of real panther so you know it's good stuff. Works 60% of the time, every time.