Ok guys need some help. I am getting some racing going at the local park. Its smooth concrete that we will be racing on. I need advice as to what tires (widths as well) that people are going to need to run. It's been 10 years since I did any kind of on-road racing. I just want to be able to help people out who ask as I am working hard at bringing new people into the hobby with this. I have attached a picture of the racing surface. It will of course be blown off before we race on it.
Hope to race touring, VTA, and any other classes that get at least 4 to run. On-road isn't all that popular here in Michigan anymore, but I hope to make it work as I know lots of people are really starting to miss it. Thanks in advance for your help and suggestions.