More than 100 riders pulled on their Spandex and pedaled off during a chilly start to the annual AIDS Vaccine 200 early Saturday, launching a two-day, 200-mile cycling fundraiser that benefits HIV research.

Riders returned on Sunday after a trek through the Georgia countryside and an overnight stop in the Oconee National Forest. They celebrated during a post-race event at the Emory School of Medicine.

The event has scored big cash for the Emory Vaccine Center, raising a record nearly $300,000 in 2013. The event has raised more than $1.6 million since its inception in 2003.