Dan Hertlein Worst. The worst ride is my commute, from North Petaluma Blvd. into Cotati. The traffic is always bad, even at 4 in the morning, and the road has huge cracks and glass and assorted debris. The best ride is a mountain bike ride up Flume Trail in North Shore Lake Tahoe. You start at Incline Village and go up 1500 feet within about three miles.
Cars travel way too fast and the shoulder is almost non-existent.
King Ridge, The Geysers, and Pine Flat. All are beautiful and have very light traffic, especially King Ridge.