I'm using an NJS approved frame for my fixed gear bike. Is it okay for me to use my new Mustache drop bar on my daily ride going to work and back home. a total of 25km per day.
As long as the diameter of the clamp surface is the same as your stem clamp, you can run whatever you want! As far as comfort, that one is up to you. Mustache bars don’t provide the best leverage for cornering or stopping on a fixie.