I have a ryker rally and many if the roads in central ohio are pretty bad. When i go over bigger bumps it feels like i am bottoming out. Im solo riding with no luggage and im 6’ 245#. I bought it used and the previous owner was considerably shorter and lighter than i am. The red suspension knob is set to 4 (which according to the manual is for two up on rougher roads). I have also included a pic of the shock. I have not tried to adjust the shock yet as its unclear to me which directions to go. Any advice or tips are appreciated