Guys and Gals, Hoping someone can help me out. I need some clarification on wheel sizes for road bikes (cycling). I am looking to upgrade my wheels as they are stock and I've had issues with the spokes coming loose a few times. The bike currently has 700 x 250 tyres on it. Does this mean the wheel itself is 700c? If it makes any difference the bike is about 2 years old and on the label stuck on the rim it says 622 x 13c but I have no idea what that means. Any clarification would be great!