On Dunlop's website they list the 404 as good for the 99-10 Royal Star Venture, but it is not listed for the 08 RSTD, so I asked then why I got this back as an answer.
"Good morning Mike,
Thank you for taking the time to contact Dunlop Motorcycle & ATV.
The D404 original equipment tire is different from the after-market tire.
The D404 original equipment tire is belted, the D404 after-market is not.
The Elite 3 tires are belted and have a heavier load-carrying capacity"
Really didn't answer My question but is it just me or does this make sense to anyone . A friend put 404's on his 06 and has no problem at all ..
Maybe Im over thinking it ?