But it's been posted in Commuting! NOTHING is lighthearted in commuting!People ... it's a lighthearted article designed to be skim read and raise a wry chuckle or two. It's not a scientific study and it's not designed to make people sell their carbon rockets. And the most important bit - which everyone seems to have missed - is that he says he enjoys riding his old steel bike more. It really doesn't matter wjhich one is faster, given that.