i went along to the local club this evening and i was told that a cyclo-cross bike would be better for me because it would allow me to do both road and cyclo-cross with the simple swap of tyres. back up to this is that the road bike do not have the brake clearances to allow you to put on slim knobblies, whereas with a cyclo-cross bike it would really mater which ones you put on. or should i just stick to buying a road only bike and give cyclo-cross a miss?? 1. is this correct?? 2. what bike can i get for aorund £300 that would be any good.