I bought some Avon Azarro A39 and A40 and took them to get mounted and balanced. When I went to pick up tires I asked why they weren't balanced and guy told me that motorcycle tires don't need to be balanced. That was on rear I am taking front tire there today. Does that sound right?
Dirtbike guys don't balance their tires and a lot of dirtbike mostly shops don't think that street tires need to be balanced, but most street bikes cruising speed is a dirtbikes top speed. you can ride them with out balancing them but you will feel them shake at speed.