Use these tips to prevent flat tires
Monitor your tires for wear and tear. Road tires generally last about 1,500 miles when used on the rear and about twice that on the front. If you go any longer than that, flat tires are more likely to occur.
Regularly check your tread for cuts and debris. Outside objects aren’t always the culprit for flat tires. Sometimes the culprit is something sharp inside the rim. If the hole is on the “belly” of the tube (the same surface the valve is on), something inside the rim popped the tube. If the hole is on the outer surface, it was caused by something that penetrated the tire and tube.
For punctures on the tube’s belly, make sure that the rim strip is fully covering the nipple holes and that it can’t move out of position. If you find anything sharp on the rim, sand it smooth with a file or sandpaper.