If you do use Oregon Adventures for your shuttle, you can expect them to run at least 30 minutes late and provide very little direction. Have a map, review the rides before you embark on them.
People here aren’t mountain bikers. People here like meth. Use city protocol when leaving your car at the trail head or anywhere else (take everything out of it and leave it unlocked). We ran across another group of bikers at their car which had just been broken into on the side of a busy highway, in the middle of the day. They had no shortage of stories about other car and home break-ins in the area. People in Oregon will do anything for meth.