I bought an old bike at a garage sale that has tubular tires with schrader valves. One of the valves has a small cut on the side near where the stem pokes through the rim, unsurprisingly when I tried to air up the tire, air leaks out of this cut in the rubber. Any chance this is repairable? I tried unsuccessfully to patch the spot, but it's too close to the rim without taking off the tire.
Thanks in advance.
Thanks in advance.