Caused by the tire being punctured by sharp external objects (such as nails, metal scraps, or wires) during use, penetrating through the rubber and the inner casing plies.
Caused by choosing an inappropriate repair method for the type of puncture, or incomplete preparation of the inner tire surface before applying the patch.
The initial puncture resulted from an accident and riding over sharp objects, which are uncontrollable external factors. It is not caused by any material or manufacturing defect.
According to the warranty policy, once a tire has been repaired by any method, the warranty is immediately voided because the tire's internal structure (casing plies and steel belts) has been damaged by the puncture.
When a tire leaks, the repair method recommended by tire manufacturers for maximum safety is a Mushroom Patch or a Cold Patch done by a specialist. The mushroom patch has a rubber stem that completely seals the puncture channel, preventing water and moisture from seeping in and damaging the internal steel belts.
Avoid hot patch (vulcanized) repairs that use excessive heat, as the heat can alter the chemical properties of the rubber molecules around the puncture. Also, avoid using string plugs (worm plugs) for long-term repairs.
If the puncture hole is larger than 6 millimeters, or if it occurs on the sidewall or shoulder of the tire, it is not recommended to repair it for further use. For the rider's maximum safety, the tire should be replaced with a new one immediately.
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