Butterflies for Hope, a benefit for lupus research, starts Saturday morning at Hot Bagel in Oak Ridge.

Registration for the bike rides begin at 8:30 a.m. with bagels and coffee. The 50- and 62-mile bike rides start at 10 a.m., and the 20-mile ride begins at 10:15 a.m.

Kent Bostick, who has won many national titles, will lead the race with his wife Rhonda, a press release said.

There will be free food and drinks after the ride beginning at 1:30 p.m.

Butterflies for Hope is for research on lupus, an auto-immune disease that affects joints and organs. More than 35,000 Tennesseans are battling this disease and hoping that a cure can be found, the press release said.