More rides to try:

from Trek San Diego (http://treksandiego.com)

25 miles Del Mar/56 Bike Path/Coast
http://www.gmap-pedometer.com/?r=662212

40 mi Great Western (hot and hilly)
http://www.gmap-pedometer.com/?r=673007
Great Western 60 miles
http://www.gmap-pedometer.com/?r=794081

45 mi 56-Lake Hodges-VdlValle loop
http://www.gmap-pedometer.com/?r=1069648

50 mi Lake Hodeges/San Marcos loop
http://www.gmap-pedometer.com/?r=975155

56 Poway/Ramona Loop
http://www.gmap-pedometer.com/?r=1187617

60 mi loop Del Dios/Bandy Canyon
http://www.gmap-pedometer.com/?r=1174468

70 mi North County Inland
http://www.gmap-pedometer.com/?r=823595