Tire Balance

My 2005 400ex has the original tires with less than 100 miles. Since it sat for 7 years in one spot, the wheels sort of deformed, having a "low" spot. So when I coast slow on smooth road/asphalt, I really feel the pulsing/whump as they go around.

After I ride a while – will the tires sort of reset themselves and round back out? If not, is one option to just have the wheels balances to offset that effect? Or am I looking at new tires.

Thanks in advance. Love the info on this forum.