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Repairing Tire Punctures. Some American bicycle riders do not know that European riders long ago disearded all but double-tube pneumatic bicycle tires. This was done after years of experience with single-tube tires, during which time every known remedy was tried to permanently repair a puncture. but without avail. In this country, tbe Morgan & Wright (double-tube) tire being patented, other tire makers have tried to force single-tube tires into favor, notwithstanding their proved failure in Europe. Many schemes have been employed by the single-tube makers to stop leaks and permanently repair punctures, but without success. A repair in the Morgan & Wright double-tube tire is easy to make, and is permanent. Inside the inner tube, all the way around. is a thin strip of patching rubber. To make a repair, pump up the tire; then inject some quick-repair cement inside the inner tube. By pressing down on the casing with the thumb at the puncture this cement will piek up the patching strip and close the puncture.