i have three or four air bubbles in my motorcycle tire whats it from and is it safe
If you have any kind of deformed area on a tire you need to get it checked out immediately whether it is for a motorcycle or a car. If there are large bubbles forming on any part of your tire it needs to be replaced. These are formed by the materials that the tire is made of coming apart and compressed air coming through, forming bubbles. This can be because the air pressure was not maintained properly. It can also be caused by heat. If your tire is under inflated, it will run much hotter. There are many factors for your tires to maintain them properly. First are they worn past the wear bars? Do you know where the wear bars are on your tires? Are you checking your pressure regularly? Do you know the correct pressure to run in your tire? How old are the tires? Really, educating yourself on maintaining your vehicle is the best way to keep yourself safe.
Replace the tire, it is faulty and will only get worse. The end result is a bubble will burst and the tire deflate quickly, 'Murphy's law', it will blow out while you are breaking into a corner, guess what happens next.!!!
it's not safe. Get them fixed or they may pop while you're on the freeway. The air inside has almost forced it's way to the surface of the tire and the thin rubber is not strong enough to hold the air pressure in check so it bubble out. Get it replaced. Having a flat is not the end of the world, but it could be.