I just noticed the bike already has a short cage on it. This may work? I tried the large/large combo and although it was tight, it didn't jam up and could be shifted back to a normal configuration. This was with a standard large freewheel. Unless the NR cage is tiny, it should work fairly well. Update later. I am stuck working again tomorrow, fourth week in a row working 6 days a week. I don't have time to wrench much less ride,,,,BD