How to make ribs tender on the grill?

To make ribs tender on the grill, first, marinate them in a mixture of spices, vinegar, and oil for at least a few hours. Then, grill them over low heat for a longer period of time, using indirect heat if possible. Baste the ribs with a sauce to keep them moist, and wrap them in foil halfway through cooking to help them retain moisture. Finally, let the ribs rest for a few minutes before serving to allow the juices to redistribute and make them more tender.