Topic: Why the 190 Treadwear Requirement?
I've been shopping for tires recently and I just don't understand why or how they came up with the 190 treadwear limit. There are a lot of interesting options in 180 treadwear tires. I don't know what sizes they offer since I haven't look much because they don't meet our requirements.
Running 14" or 15" tires results in a pretty limited selection of tires and sizes but the prices are lower then larger sizes..
I have been running Toyo T1Rs and can get more even though my size has been discontinued.
I would have liked to have gone to the Hankook RS-2 in a 225/45r15 except they were discontinued in addition to appearing to be Sold Out. I might get lucky and find some.
The Falken Azenis are available in a 195/60r14 or 204/50r15. They are very common and popular in Lemons. Grassroots rated them the best Auto Cross tire. However, we aren't Auto Crossing, we are Road Racing.
I've heard mixed reviews on the Azenis, some people have said they get greasy after 5 or 6 laps. With most Auto Crosses being about minute or so, they only have to perform for a very short time period. In addition to that, they have a new compound which should be available in the beginning of March. I don't know who that will affect tire performance either.
I got a report that a Dunlop is 1 second slower than an RA1 on a Miata but I haven't been able to confirm that or which specific Dunlop they are referring to.
While I would like to go as fast as we can, being an enduro, consistency and predictability are really more important. I think consistency and predictability are going to make the car easier to driver for less experienced drivers.
#35 LRE
1973 Datsun 240Z