One of my front tires has what looks like a small bump on the sidewall. any idea if this needs to be replaced right away? will it get worse? is it safe to drive on?

 

S2K Power,

I would order a tire soon. I'm not going to be the one that says it's o.k. to drive on it.

If you buy the insurance at Discount Tire, they warranty against mishaps like this one.

 

The bubble in the sidewall is caused by an impact with something on the road. The belts are cut on the inside of the tire and the air is escaping in that area. I would recommend replacing the tire.
If I can help let me know.
Thank you

Jim 800-428-8355-364

 

Replace that tire immediately.

A sidewall compromise like the one you have is very dangerous. Drive like your grandma or not at all until it's replaced. No on-ramp jaunts.

You did good spotting that ... most people are totally oblivious.