I just bought a specialized hardrock with 26" wheels and disc brakes. The rear wheel is a z1000 Alex, the inside axle is broken when I took it out the bearings all fell out. I can't seem to find that wheel as it's discontinued, what can I do? Can anyone recommend a wheel or parts or me that works for disc brakes and this is a 2011 hardrock. I also have a problem with the sun tour forks that won't compress