(Triangle MTB could be referenced here as a resource for mountain bikers.)
Road bike routes
Mountain bike routes
Lake Crabtree trail - Located in the Lake Crabtree County Park (which is technically in Morrisville), this trail can be accessed from the Black Creek Greenway which runs through Cary, NC. Eight miles of single track near the Reedy Creek entrance to William B. Umstead State Park along Lake Crabtree.