It is good to a certain extent that it will work your opposite stabilisers. But if you train for cycling your just adding extra muscle so - extra weight, limiting movement.True. I've heard that running and cycling use completely different muscles and know of 'serious' runners/cyclists who refuse to do the other because it interferes with their training. But I was under the impression that it's good to exercise 'opposite' muscles (eg biceps/triceps; quads/hamstrings) so that your joints are more stable![]()