On behalf of the Avon Customer Service, Ms Sukoshi Fahey transmitted to me very good tips to be sure you ride safely on your tires.
1) Check tire pressure at least once a month for cars, once a week for motorcycles. Tires can lose up to a pound a month of air pressure. Consistency is the key. A sudden drop in pressure is noticeable with regular pressure checks. E.g., 40, 39, 40 then 30 psi indicates a leak or puncture or other type of problem. It could be as simple as a bad valve stem or bent rim or something more serious such as internal tire failure.
2) When riding for long distances monitor tire pressure every morning when tires are cold. Then check tire pressure after a few hours of use. More than a 10% increase in inflation means the tire is working too hard. Lighten the load, decrease speed, or add air to the tires so they run cooler.
3) When oil is changed, it’s a good idea to check tire pressure and inflate to at least recommended manufacturer suggested pressure or higher so the tires run cooler and have less rolling resistance. This will result in better fuel economy and higher mileage for your tires. It also helps avoid irregular tread wear on the tires.
4) Use a digital pressure gauge if possible or ensure your pencil stick gauge is accurate. Look into a tire sensor to warn of low air.
5) Remember cold weather means air in the tires contracts and may require additional air. High temperatures, hot or rough road surfaces, high speeds and heavy loads all cause the tire to work harder and hotter. Make sure tire pressure is sufficient to deal with these conditions. Also under inflation is the number one cause of tire failure.
6) Eyeballing tires for under inflation or over inflation is not a good idea, particularly on a motorcycle. A bike on a center stand and with no riders on it could be missing half the weight or more the tires will end up supporting. In addition, it is necessary to get down and examine tires under the fender to see if there is any tire damage. With only a few small inches supporting the load on two tires versus a much larger contact patch on 4 tires it’s a much riskier proposition taking a chance with motorcycle tires. Check also for cracking on the sidewalls, in the grooves, stones or cuts.