What do people to consider a good range (no. of ks) from a tank of petrol. Being new, I am used to my car that gets 500ks around town and 600-700 ks on the open road. It appears that from my '94 CB400 I get around 300ks to a tank. What do you consider good / OK / bad? What's your experience? It would appear that bikers spend a lot of time filling up.