1 external complement method; Inflate the tire with an air pump; Find and mark the damage; Insert rubber strip into the needle drill; Knock rubber strip into the damaged part with a needle drill. Method 2: cold tonic method; Inflate the tire with an air pump; Find and mark the damage; Remove the tire from the wheel hub with a tire remover; Smooth the damaged part with a tire grinder; 2. Apply cold glue; After the glue is air-dried, stick the glue on it and compact it. Tape repair. In the early days, rubber strip was basically used for maintenance. The maintenance speed is very fast, which solves the problem from two aspects. This method is more suitable for the big hole of vacuum tire, but it has one disadvantage. Pierce the nail so that it can be repaired directly with rubber strip. If it can't be repaired, please pull out the nail. Then, file the hole wide with a special vacuum tire glue gun, and then insert the adhesive tape. It did more damage to the tire because the hole was much bigger than before. So this method is rarely used now. 3 Self-repairing water supplements the most used self-repairing water at present. It is very convenient to remove the valve core first, inject glue, and then inflate the vacuum tire. What are the benefits? The benefits are actually very great. First of all, it doesn't matter if you nail it in or not. Second, after the tire punctured something or a nail, he can mend it himself. Relieved our worries. Third, it lasts for a long time and can play a role before the glue dries.