I have a 2011 street glide. Bike rides great (bought used at 8300 miles ) As far as i know it has the original tires front and rear. At about 10 g i switched out the rear tire, was getting thin in the skin. Put the proper tire back on it. But since i did this, i have noticed at about 30 - 40 mph I get a light wiggle in the front end, If i let go one hand it gets worse but not that cant be controlled. If I let go both it is a pretty good wiggle. (no i dont make it a habit letting go, was checking the wiggle extreme) front tire now has 13000 on it, tread is pretty good but getting down there, could make it thru the season. My question is does anyone have this problem ? Or does anyone know why it is there ? I have had the bike up to 100 mph and handles great it is that sweet spot 30 - 40 mph that it gets the wiggle. Tire out of bal ? Thx