Is there such a thing? A fixed gear hub except you can run a cassette on it. With all the broken ankle biking I've been doing here over the past month plus now it would have been grand to have a fixed gear hub but to still be able to switch gears since I live in a hilly environment. Having the rotating wheel helping you pedal would make it much easier and keep a higher speed up. I would have need the capability of being able to switch gears for climbing or descending.
Is their a hub where you can 'lock' the the hub and still be able to switch gears?
Is there a way to lock/convert a regular hub so it functions as a fixed gear hub?