Originally Posted by
iwegian
new goal. gonna try to improve my cardio. running maybe? or just keep riding?
I get most of my "training" time on the bike by riding to work. The mix of stop signs and traffic lights sort of (just a little bit) simulates the sprint and stop pace of a cross race, but a long light can take me out of the cardio zone in a hurry. So this year I've been running to get my cardio prep in.
I suspect it's a poor substitute. You really need to get a feel for what your maximum sustainable effort is, and that's generally different between on the bike and running.