After talking to Roger I ordered and installed the 21/800/6 tundra tires (tubeless) and so far very happy with them.
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This tundra tire is a 4ply. There does not appear to be any differance in airspeed the footprint for airflow around them is very much the same as the old tires. They fit on the standard 6 inch rim supplied standard in the kit. I use the Honda case seal between the hub halfs along with the large o-rings to seal the tires and so far have not had any leaks. Zenith should have them on their parts site very shortly; or all Shirley or Joyce at Zenith for more info on them: 573-581-9000
They look great! What brand and ply rating are the new tires? How much difference in cruise speed have you seen?
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