Bring the water to a boil. Remove from the heat, add the rice noodles and let soak until the noodles are tender, about 7 minutes. Drain well.In a small bowl, stir together the soy sauce, white wine, sugar and chili oil.In a large skillet or a wok with a handle, heat the oil. Add the kohlrabi and cook over moderately high heat until browned, about 3 minutes. Stir and cook for 1 minute. Add the bell pepper and garlic and stir-fry until fragrant, about 2 minutes. Add the eggs; stir-fry until just set, about 30 seconds.Add the rice noodles, bean sprouts, scallions, basil and the soy sauce mixture. Cook over moderately low heat, tossing gently, until the noodles are heated through and coated with sauce, about 1 minute. Transfer the noodles to plates or bowls and serve at once.