Regardless of the "word of mouth" I had great luck with Shinko on my Wideglide.

 

 

there are many outlets for vintage tires, just google, coker has some.
i can not say much about shinko tire. they had no issues with traction but i smoked them in 4>5k miles. the highest i ever got was a tad over 5k on the stock dunlop, running a commander now and if it does not pan out, going to the DARKSIDE!

 

Got 6,000 from the Shinko VS 6,800 from Dunlop and the Dunlop was over twice the price.

 

www.cokertire.com

 

 

Now you just got STUPID...............goodbye

 

they do not recommend running an english tire (flat bottom) and the so-called ball bearing tires (mushroom sometimes). i hate the performance tires, good for curves but junk for flat running. there is 2" of contact vs 4.5" of contact. i can smoke a performance tire in less than 4k. they suck on wet pavement, i can break traction on a wet road at 70 mph. they say do not run bias and radial also although i have without issue.
i like the commander so far as it is pretty much a english tire and handles well in the curves without the fall-off feeling, only time will tell if mileage is good, if not, darkside i go!