Does it have disc breaks or pad breaks that lock agents the wheel? Either way its pretty simple most likely a 5/8" or 15mm to remove the 2 nuts on the hub, one one each side. If its disc you should be able to gently slid it out, if its pads, I would just remove one of the pads off. It should be held on by a Allen rench. The it should come off pretty easy. Just as easy to get on.