Sturgis?
You mean where brain surgeons and tax accountants go on their bikes?
If you don't want to drink and party then you might not enjoy it. If you want to go and watch others drink and party, that's probably OK. If you don't already have a hotel room booked and don't want to camp out you are probably out of luck.
Lot's of different types go to Sturgis. Many pack up their bikes on a trailer behind their Lexus SUV and don't get on their bike until they get out there.
This may be helpful but it won't show the topless girls
http://www.sturgisrallysite.com/