Icarry a spare tube with me and use it when I get a falt. I then patch the leak when I get home. You must sand the area where you are patching to remove any release agent used in the tube manufacture. Pinch flats can be avoided by inflating the tires every day before you ride. This is no problem if you have a floor pump with built in pressure guage. Armadillo tires are bomb proof but are very heavy and dont ride nicely. I use light kevlar belted tires with a Mr Tuffy strip - the total about 1/2 the weight of the Armadillos and easier pedalling.