Crisp Cucumber Salad

2 cucumbers, thinly sliced
4 onion, thinly sliced
1/2 small red bell pepper, chopped
1/4 C sour cream
3 T white vinegar
3 T sugar
1 1/4 tsp salt
1/4 tsp black pepper

In a medium bowl, combine cucumbers, onions, and red pepper. In a small bowl, combine remaining ingredients; pour over cucumber mixture. Cover and chill at least two hours before tossing and serving.