I actually ride it quit a bit in the summer and have never had a problem on it. Usually the traffic is going slow enough thats it's not an issue. If you are descending the Needles Highway there is not a problem with drivers trying to go around you because a bike can go way faster down it than a car anyhow. The problem is more with being able to get around slow cars that are taking in the sights. From the bottom of the descent you can go left on Playhouse Road and you will hardly see a car. Still, everyone has to find their own comfort level for sure. Early morning is better than latter on in the day, just like everyplace.