oldNslow
That 1/8" of tread left after about 6,000 miles don't seem to bad .

This is a drive shaft bike and changing the rear tire requires removing a lot of extra stuff , so the $$$ is not an issue but longevity is .
Here in Tn. we can run tires as bald as we want as long as ya don't live in one of the bigger city's. So I usually get my $$$'s worth out of every one of them tires.

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Dave , that Roadtec tire looks inviting but so does the 712 ???

I can get two of the 712's for the price of the Roadtec and if the Roadtec only last 1000 miles longer then I don't know if it would be worth it. Not being a $$$ issue but just being a practical issue ?
So I'm leaning toward the 712 now ... but I've got at least 1000 miles left on the AM26 , so I can ponder the issue a bit .
The 80 series sport tire that came on it made the speedometer looking optimistic , but the 90 series AM26 landed it 99.8% right with the GPS. So I need to stay with the 90 series. If a 140/90 would fit I do it next --- but there isn't such a thing as 140/90-17 anyway

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Thanks for the input guys !