springman, I have a Shinko 230 in 150/90 15 tubeless on mine and have about 6800 miles on it,. Looks about half wore out. I'm figgering 12-14k on it time it's shot.

DISCLAMER--- I ride easy and cruise long easy miles on my high geared S-40. Your mileage WILL varie with your twisting of YOUR right wrist!!!

My tires ALWAYS wear out in the middle with the sides still standing tall. S. Fl. roads are straight and flat, and when I go to the mountains I never try to corner with the locals. Learned that the hard way on a bike during a mountain century ride.  
I got about 7k on my last rear tire, a Dunlop 404. Seems I got the same on my PC 800 with a 404. They are a nice all around tire, never slipped or wiggled on me, but I prefer a higher mileage tire, they are a chore to change more than you have to.
I think Shinko makes the 712 as a all around tire and the 230 more of a cruising or touring tire, they say tour master on the sidewall. If you want to drag your pegs in the corners, and rip it off every light, you will never get 12k on a ''cheap'' tire.
I set my bike up to take a 150/90 to try the Shinko 777 HD but when I was ready to buy I saw this 230 for $60.00 delivered! The 777 was $108.00 at the time so I jumped on the 230. 12k on a $60 tire is a deal in my book! But next tire I will try the 777, they are under $100 now.

Well Dave, black and round is definitely a good start!

Badwolf, thanks for the review of the 230. I've pretty much decided that is what I am going to order for both front and back. I do tend to have a rather quick snap of my right wrist that seems to be hard to control when I'm on the bike. What can I say? I do not like riding close to cars.

I had pretty good luck with the overall performance of the 712. We'll see how the 230 works for me.

springman wrote on 05/06/16 at 19:07:34:

Cars don't bother me unduly, but i do seem to have this cro-magnon (cro-magwheel?) dude living inside me that seems to have more control of the right wrist than I do

Thanks Kenny, I am gong to order the 230's soon.

Thanks also Pescatori, I have one of those Pirelli's on the front and I have to admit that I am not too happy with it. I will admit though that this tire is very old and that has probably affected the grip. I can tell you that as a front tire it was on the bike when I bought the bike ( I do not know if it was the original tire) with 4k miles and I am approaching 22k miles.

Well the Kenda 673 rear that I put on the first of April has 3,200 miles on it and you can't even tell if its broke-in yet .  
The Shinko "Tour Master"  on the front is about half worn out but I didn't write the millage down when it was new --- BUT --- I did replace the original front tire with it and the bike has 26,461 miles on it now .  

So how many miles does it take to wear-out the original front ???
 
Added note ... I always use the front tire for stopping - only in emergency situations do I add the rear tire for helping stop .