Preheat your smoker to 250 degrees fahrenheit following your manufacturers instructions. I like to use a blend of Oak and Mesquite (70/30 mix).
Inspect your ribs and trim off any imperfections, fat and the silver skin. The silver skin is located on the topside of the ribs. Leave the membrane on otherwise the ribs can fall apart during the cooking process. Cut the ribs into single pieces.
Mix the dry rub ingredients together in a bowl. Rub each rib with olive oil then coat liberally with your dry rub. If you would prefer to use your own dry rub or store bought feel free.
Once your smoker has pre heated place the ribs in and smoke at 225 for 3 hours.
In a spray bottle mix together 50% water and 50% beer / cider / juice / stock of your choice. At the 2 hour point open your smoker and spray your mixture over your ribs. Repeat this process every 30 - 40 mins for the rest of your cook time.
You are looking for an internal temperature of at least 200 degrees fahrenheit, this should be at around the 6 - 7 hour mark. The outside of your sibs should have developed a nice bark by this point.
Remove from the smoker, cover with foil and let rest for at least 15 minutes.