Originally Posted by Patriot
According to that, I need almost a 200mm crank with my 36" inseam. I have been running 175's for along time, and they seem fine. I would need custom cranks made if this is true. Not only would they be outrageously expensive, but carbon fiber would be out of the question, since no one makes them that long.
It sounds like your are comfortable with what you have. One thing though, is that you could have some carbon fiber ones made custom if for whatever reason you decided you needed em. Carbon fiber is very easy to work with, especially if you already have a mold to start with. I've used carbon fiber, fiberglass, and kevlar to custom fab parts for my radio control planes and cars for years. Fiberglass especially is easy to work with, cheap, and relatively strong. Many home built general aviation planes use fiberglass extensively on control surfaces and other high load areas.
Just my 2cents.