I average about 400km per week and that's including racing. But I ride about 6 days per week. Roadiechick - 250km a week is pretty good and certainly enough for fitness. It depends how long you've been riding and what your goals are. If you're racing and serious about the sport, then you have to do lots of kms. I'm in my 3rd road season and doing these kms, but in my first road season because I was still building up a lot of fitness it would have been closer to 200.