Combine rub ingredients in a bowl. Coat ribs with rub, coating ribs well. Set aside for 15-30 minutes for flavours to infuse. Pre-heat Weber SmokeFire to 130°C. -135°C.
Place ribs in Weber SmokeFire. Place a probe in the centre of the meat. Cook ribs to an internal temperature of 65°C. Using the spritz, spray every 30-60 minutes to ensure meat remains moist.
Remove ribs and wrap in foil (Texas crutch hold). Place back in barbeque to finish cooking to internal temperature of 95°C. Remove, open foil for 5 minutes to allow steam to escape, and re-wrap in foil, rest for 30 minutes.