Had 205-55-16 KR21 tires installed on my wife's '87 300D last week. They balanced with hardly any weights on the Hunter 9600 under load.
I took them for a spin and on the way home from the tire shop I opened it up and was pleasantly surprised how good they feel. I give them an initial thumbs up and at the price they are selling for ($107 per) I might buy a set to replace the Bridgestones on my other '87.
I was upset that Bridgestone discontinued the 960AS Pole position and I have to buy a different tire as they told me a 970AS won't run alongside a 960 without some tire pull. So Bridgestone loses a sale.
DDH

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'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!