Some in the large, helmeted crowd still were processing the death of their friend.
Others didn't know Steve Norwick, but wanted to show respect for the man and share his love of bike riding.
About 200 cyclists turned out Sunday morning in memory of Norwick, 68, a newly retired Sonoma State University professor who died this summer after being hit by a car while on his weekly Friday morning bike ride.
"It's a real honor to see how many people have been thinking about my husband and what happened to him," said Marthe Norwick, standing in the crowd with her bike helmet on, ready to ride.
On June 8, Norwick was riding with a friend along Petaluma Hill Road, headed for breakfast in Penngrove.