Check out 'Two Wheels Only' in Suches Georgia... it's about a 2 hour ride to the gap, roads are all just as twisty and nice... you can still ride to the gap, but when you get sick of the 300 bikes in a small riding area, head on out and find many other areas less patrolled by police.
It's a ways away, but it's a campground catering to motorcycle community... no one is allowed to camp there without riding or hauling a bike. Plus they have a great restaurant.
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