I have no QR's, but I do have a ringlock with a chain that fits in it. I can leave the chain at home, I can leave it locked to the ringlock and wrapped around the tube for a quick stop, and I can use it and take through the front weel and wrap it around an object before I lock it to the ringlock. I especially like about it that I don't have to use it and the chain can't get stolen when I don't use it but leave it on the bike. Axa and Abus produce those.