Originally Posted by
palesaint
I get my ass handed to me regularly by 55-59 year olds. Haven't seen a 60 year old whoop me yet. But I don't ask everyone their age and I haven't ridden with everyone. Still, I would put the magic "going downhill" number at 60. Saying that I have ridden with several 70-76 year olds who do a decent job holding their own.
I think the comment about 18 being peak might be in reference to the body's ability to improve and repair itself, producing the quickest results.
i've also ridden with some strong older people. one of the reasons i got into cycling is because it's a sport that one can enjoy as one ages. but those 60+ riders who are fast/strong now, i'd bet they were straight up beasts in their 20's.
after 18-22, in general, people lose their explosiveness and their ability to recover.