Prepare ribs: Stir salt, white sugar, brown sugar, black pepper, white pepper, onion powder, garlic powder, chili powder, paprika, and cumin together in a small bowl. Dotdash Meredith Food Studios Rub spice mixture all over ribs; cover with plastic wrap and refrigerate for at least 30 minut...
Just like baby backs, if you want to wrap spare ribs then you do it when they hit an internal temperature of around 160F. The finished temperature for spare ribs is usually about 205F which is 10 degrees hotter than baby backs.