![]() ![]() Given the expense of buying run flat tyres in the first place, each puncture could end up costing a small fortune. ![]() If they are patched up, it’s highly likely they’ll puncture again down the line due to uneven wear and loss of rigidity.Īnd that’s their biggest drawback compared to conventional tyres, which can often be repaired reasonably cheaply after a puncture (provided the hole isn’t in the sidewall). That’s because, once they’ve been driven on, they lose their structural integrity, making them unsuitable for puncture repair. This will ensure you get maximum life out of your tyres before having to replace them. To keep your run flat tyres in good condition, check their pressure, depth and condition every fortnight. Despite their reinforced components, run flats will wear at the same rate as standard tyres, and require the same level of care and maintenance. Generally, run flat tyres use the same rubber compounds as conventional tyres, so you can expect similar longevity. Most TPMS systems display an alert on the centre console, reminding the driver that they should stop driving after 50 miles and seek a tyre repair or replacement.ĭo run flat tyres last as long as normal tyres? Without a TPMS system, it would be almost impossible to detect a puncture, given that run flat tyres will continue to work even when they’re deflated. How does the driver know when their run flats have a puncture?Īll cars that are compatible with run flat tyres have a tyre pressure monitoring system (TPMS), which is designed to alert the driver in the event of loss of air pressure. ![]() However, the sidewall isn’t designed to be permanent, and is only recommended for around 50 miles of additional driving after the tyre has deflated. The reinforced outer shell of run flat tyres keeps the rubber in place without air, supporting the car as you continue your journey. Unlike conventional tyres, which require air to stay hard, run flat tyres have a reinforced sidewall, meaning they stay rigid without any air pressure. That means, in the event of a puncture, you can continue driving for around fifty miles without having to change the tyre - which could be enough to get you home, or to a garage. Run flat tyres are designed to remain safe and functional for a limited time with no air pressure. ![]()
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