In a large mixing bowl, combine the shredded cabbage, shredded carrots, and sliced red bell pepper.

In a separate bowl, whisk together the apple cider vinegar, sugar, salt, black pepper, and olive oil until well combined.

Pour the dressing over the vegetable mixture and toss until the vegetables are evenly coated. Let sit for at least 10 minutes before serving to allow the flavors to meld.