140 miles in one day is the most I have done in one day. Rode from home to Long Beach, 16 miles, then met up with the scooter club. We rode to Mission San Fernando, 60 miles away. We toured the mission, had lunch and the took the scenic route home.
My observations about the LIKE during a long ride are that it ran smooth, got great mileage, (80 mpg) and the designer of the seat should be set on fire. Thank goodness I have a rubber mat and an AirHawk seat cushion. They helped greatly. I would never had attempted to ride the LIKE that far with just the stock seat. It has been a great learning experience in finding routes to interesting places without having to go near the freeways.
There was very very little traffic on Sunday morning. The Westside crazies were not out yet. Temperatures were only in the mid 80s by the afternoon. What a GREAT day.
I heard that you can go through Camp Pendleton to get to San Diego. That's the only coastal route except for the freeway. You just have to go through a bit of red tape to ride through the Marine Base. It may be an option down the road.