I took the 53/39 rings, cranks (172.5 mm), and BB off my 2004 Trek when I came upon a newer set. They all work fine, and the rings are about a year old. They've definately been used but work perfectly and I don't have any use for them. Let me know if interested- I'm not really looking to make much $$. I can send pic's if you give me your email address and what you think is a reasonable price.