Took a friend to the darkside Saturday and want to share a few of my experiences. With no planning we went to Discount Tire to grab a tire, to my dismay the Falken Ziex 512 is no longer available, it has been replaced with a asymmetrical 612. The choices of symmetrical tires in our size that they had in stock was zero. Zero!
Falken Ziex 612, not as cool looking as the 512 but has a similar profile.

Do not go to the Discount tire on Ohio in Plano and say the words darkside or motorcycle, they refused to sell us a tire because "a car tire on a motorcycle will not corner and I couldn't, in good conscious, sell you this tire". True story. So then we drove to:
Discount Tire
2260 State Highway 121
Plano, TX 75025
(214) 547-0673
Where they were good with putting a CT on a MC and happily sold us a tire, give 'em your business.
My buddy decided to go with a Kumo tire with an asymmetrical pattern 'cause that's all they had. The Firestone in Allen on East Main mounted the tire for free since they couldn't put they mounted a car tire on a MC rim on an invoice, the tire guy earned a nice tip for himself.
So far, Rudy loves being a darksider.