Installed new front and rear Michelin commander 2's now when I let off the throttle running above 60 mph, I get a bad wobble that feels like a flat tire. Only when letting off throttle. It's smooth under acceleration and at steady speed. Any ideas what's wrong?

 

Is there a painted dot on one side of the tire and is it in line with the valve stem? Is the tire facing the right direction? Lift it and check the wheel bearings.

 

You wont like my answer but: If your new tires are seated and balanced, ride it for 500 miles and I will bet the shake goes away. Several theories on this. If you are patient the shake/wobble will dissipate. This issue shows up most often on Softails, spoke wheels and The CII's and Metz 888's

 

I agree with "Checkers", give a few miles.

In the meantime, I recommend you add Ride-On to both tires.