i would have to say HighWay 9. Staring from Saratoga all the way up to the 4 point stop sign!
-Moose

 

Hwy 9 is great if you like speed traps every half mile in the Spring and Summer.

First Time I ever rode my R1 on that road was so cool seeing all the other bikes but then ya start seeing cops everywhere too. Still a nice drive to cruise in the off months.

I actually took my Z down to Santa Cruz via 9 Near the speed limit though

Skaggs Springs at lake Sonoma is like a race track, without cops and in the Spring and late fall during the weel, virtually no cars either.