Bought it April of 16. Last fall I began to have same average speed as when on a diamond frame during the 2015 season. Considering that I am another year older and wear knee braces, I can't complain. Say 15-16 months.

I now also have a recumbent trainer I hit pretty hard, and my gym has them too. 2 hours at a time, three or four days a week right now on the trainer. I do not intend to lose the legs over the winter. As I near 70, it will be harder and harder to get them back.

Age and diabetes has caused me to stay in during cold weather, simply cannot tolerate it, but 90 degree days will work for me.

Am really happy with the Cat. Dropping youngsters with good kit makes my day. Getting dropped by hammerheads no longer damages my ego.