This is probably a waste of time and money. Having said that, I will also say that I have an old A2Z adapter that didn't quite work out on one of my old bikes. Having looked at a picture of a Y-11, it looks like it might just work on your frame. It's yours for free, if you want to try it. PM me for further details. By the way, you will have to have disc hubs if you're using disc brakes - there isn't any way around that.