There is a ride at the Sebring race track in Florida south of Orlando that you can ride a double century or more. Its the Sebring 12/24 hour bicycle race, which is also a qualifier for the Race Across America. Here is the website for the race:
24 Hours of Booty, Charlotte. Last weekend in July. It's a fund raiser for the Lance Armstrong Foundation. You ride as long as you can around a 2.3 mile loop. 1500 riders. The winner this year rode 200.
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