Bring a large pot of water to a boil. Cook soba noodles according to package instructions. Drain, and rinse with cold water to cool completely.
In a screw-top jar combine rice vinegar, soy sauce, olive oil, sesame oil, and maple syrup. Cover and shake to combine.
In a large bowl, combine the soba noodles, cabbage, carrots, onions, sweet pepper, and cucumber. Pour dressing over noodles and sprinkle with sesame seeds. Toss gently and sprinkle with cilantro.