I think the other alternatives have got to be that Avon moulded road legal slick (CR6ZZ i think) or the Hoosier road race bias slick. Max temp I saw on my pyrometer on my A032r's at Mallory was 76deg centigrade i'm pretty sure my lightweight car would not get a dunlop slick warm & I think anything more than a 6" wide treas would over tyre it too. I think i'm going to try the avons next, stiffer sidewall should help too.
stiffer sidewall doesn't help at all as the tyre does less work means it heats up less....
stiffer sidewall and a soft compound would be ideal....
Jon from Lynx is running on 7x10 Miglia spec and dunlop slick and told me no problem to get them warm.
Think 7x10 should be still ok as your tyre is 165/70 semi oder 160/490 slick anyhow so if rim is 6x10 or 7x10 doesn't change the contact surface of the tyre significantly (a bit on the slick). Stretching of semi will reduce tyre sidewall movement a bit.
Having metro brakes and 7x13 ET 10 at the moment, think I will try the soft compound Kumho semi-Slick in 13" first, which you can cut and have a great wet slick too. Wanted to go 10" but would need to change brakes, rims and then tyre selection is very small plus it seems beside yoko 032 there is no really fitting tyre for R1 mini but real go-cart feeling is only on 10". I am in a dilemma....
Hoped the 10" american slick solves all this as in theory for light weighted cars, soft compound=warm+grip and smaller diameter means less rotating mass (significant advantage with the low torque of R1) and acceptable price. If I would be on 10" , I would try it but converting+trying is too much money.
Edited by Helldriver, 28 May 2015 - 07:35 PM.