The bobbin rear carrier rack is the best way to carry your luggage with you the slim lightweight and adjustable rack gives great versatility in what bags you can transport the rack has the capability of adapting to frames with 26 wheels to bikes with 700c wheels also coming supplied with p clips that allow you to mount the pannier to a frame without rack bosses this allows you the option to switch between bikes if you ever need to from your 700c cruiser bike to your 26 mountain bike the