Catholics don't believe in tradition over the Bible, but believe in both equally, as they do not contradict each other. The early Christians didn't have the Bible, they only had the traditions passed down from the apostles.
We have the Bible now, and actually, Catholic tradition directly contradicts the Bible: There is no mention of separate, special "saints"- all Christians are called saints by Paul. There's no mention of "purgatory" or "limbo". No foods are forbidden. Mary is not equal with Jesus. You don't have to confess your sins to a priest, nor do you need a "saint" to intervene for you when praying to God. You don't pray to "saints". No man is sinless. There are not different "kinds" of sins (original, venial, mortal); all sins are equal in God's eyes. Mary didn't remain a virgin and needed a savior like everyone else.
The list goes on. By the way, I was raised a Roman Catholic and I also read the Bible.