Tank bags are the best solution for carrying your overnight kit, phone, lock, wallet and essentials, also making these items quickly accessible while on the bike. So to carry on that convenience, our Quick Release (QR) system makes sure that your Oxford tank bag is secure when attached to the custom tank ring, but is also so easy to remove when you need to. There are adaptors to suit hundreds of motorcycles and all attach via the standard filler cap screws. If you have a standard Oxford tank bag, you can upgrade it to the QR system easily by buying the appropriate QR base.