Welcome to Bike Forums. I lived in Decatur for 20 years. Ask at the shop where you bought the bike (Roswell Bicycles??) about racing. They should be able to give you some good info.
Good luck and enjoy the bike.
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The Lord is merciful and gracious, slow to anger and abounding in steadfast love. - Psalm 103:8
I am a cyclist. I am not the fastest or the fittest. But I will get to where I'm going with a smile on my face.