Quentin Willson's guide to Checking Your Tyre Pressures
Checking for Tyre Wear and Damage
And while you’re on your hands and knees, look at the whole surface of the tyre for any worn or flat areas (particularly round the edges or shoulder), embedded nails or damaged tread. A small nail lodged in the rubber might not have actually punctured the tyre carcass, but it could later, so get it removed and the tyre repaired. Look at the sidewall too. Any bulges, gouges or indentations in the wall of the tyre from curbing or pothole damage could weaken the sidewall and cause a blow out at speed. And give the wheel rims a look over too. A cracked alloy wheel or bent steel wheel rim can affect the tyre’s performance at speed and even cut into the rubber on cornering. Visually check each tyre and wheel in turn, and if you’re in any doubt get it professionally examined.