Some things translate, most notably- running hills. Hill repeats on foot mimic climbing on a bike, that's why if you're training for both, you'll rarely see hill repeats for both disciplines in the plan for the same week.
Otherwise, every new activity makes me feel out of shape. Wait, cycling makes me feel out of shape, too
. dammit.
Just keep riding. We all started a block at a time. I was sure I was going to die.