Not first hand experience. I drive out that way from time to time to Rosamond and what I always say is that you can never count on the temperature (I've been there when it is near freezing all the way to over 100 degrees), but you can always count on it being windy. Only other thought is that I don't know if bikes are allowed on the 14. The general rule is that no bikes unless there is no other practical route. My guess is that between Palmdale and Rosamond, they are not allowed. Rosamond to Mojave -- no idea.