When I was a kid and had my first car, I bough recap
tires and didn't have the money to have them balanced. I never noticed any vibration from the
tires.
Having said that, the OEM
tires that came on my
Scamp when I bought it new had no wheel weights. I have had the two replacement pairs balanced.
To this day I don't think it matters if you balance tires or not. But I get it done anyway.
-- Dan Meyer