Luffy's current peak power is Gear 5, his awakened devil fruit form enhancing his abilities significantly. Gear 6 is unlikely to exist, as Luffy has stated Gear 5 is his pinnacle devil fruit form.

The Red Roc ability in itself is actually an enlarged version of the gum red hawk which Luffy executes using third gear. But the question is why is the Red Roc considered so important and how ...