Guys I meet a Kumho Rep at the Willis 100 and I have e-mailed him the following:
"Question would Kumho be interested in making speed rated tires for the Cobras in a 15" rim size? Most run a 235/60/15 or a 245/60/15 up front and a 275/60/15 or 295/50/15 in the rear. All that is available now is S speed rated BFG, Goodyear or Dunlop and most want a stiffer sidewall and sticker rubber than a S rated tire offers. If they were offered thru Tire Rack or another source or from Kumho direct I bet you can sell several thousand sets per year. For example there are over 2000 Factory Five Cobras on the road and they sell about 500 kits per year. There are probably more than double that if you combine all cobra kit manufacturers with Factory Five.
I looked at your race type rubber and did not see much in the way of 15" sizes like the following. Do you offer road race type tires in these sizes?
http://rogerkrausracing.com/cobra.html
C 26.5X8.0-15 GOODYEAR N 26.2 8.00 10.9 on 8.0 10 0 7.0 - 9.5 115.00
C 26.5X10.0-15 GOODYEAR N 26.7 10.00 11.9 on 10.0 10 0 8.5 - 11.0 127.00
C Original size Cobra tires in SLICK tread design for serious track use only. Customer Satisfaction 10. "
Here is his response
I have been telling our marketing director about the need for these sizes, but he seems to think that there isn't enough interest to develop them. I think it is a good idea because there are plenty of vintage guys out there with little in the way of tire options. Anyhow, I will send your email to him as further proof that there is a need for these sizes.
Thanks,
Aaron Smith
Kumho Technical Support
I will e-mail him a link to this thread so he can track our interest.
Ruble
DSCC