Last summer I was in my MH on 128, which is just south of Mendocino on the CA coast. I was headed east on 128. There were several solo bicyclists along the road. All but one was riding in the center of the lane. At any given time there were 8-10 vehicles behind them, as it was very difficult to pass on that road. In my opinion, slower traffic needs to pull over, whether you are on a bike or in a MH. Living in an area with a high concentration of bicyclists, I find many are very cavalier about claiming the road and not yielding to faster traffic. And I bike to the gym and around town btw, and give vehicles a wide birth.