Avon ZZS tyres

[S2KGSY]

Anyone have any experience of the new Avon ZZS tyres and their suitability for hillclimbing? I know they are supposed to be better in the wet but are they a lot slower than the ZZRs in the dry?

[Terry Everall]

What are you going to use them for?

[S2KGSY]

As a 1b hillclimb tyre.

[Terry Everall]

You probably already know that the ZZR is list 1C and therefore cannot be used in Roadgoing classes. The ZZS looks a good option in 13" sizes but no real feedback yet on dry track performance

[davidgh]

Chris (son  --  not a member here) was fastest road-going car at the HCA&AC sprint at Debden on Sunday (beating all twelve of the Class A8 "over-1700s"). It was our first outing on ZZSs  --  dry, sunny and warm. Subjectively, he thought the ZZSs had significantly less ultimate grip than the "slick-like" performance of ZZRs, but were much more progressive at the limit (much (his view) like ACB10s were).

 

He is in the process of attempting a data analysis against the same venue last October (also dry and sunny) where we were using ZZRs  --  if anything useful comes out of it, I'll report back. 

 

Interesting anecdotal evidence, though not remotely statistically relevant,  --  of the sixteen "road-going" kits present, the four fastest were all on ZZSs.

[thegunplumber]

i believe toyo sg compound is better and still ok for list 1b 

[pete g]

but they only fit weedy wheels 

[thegunplumber]

still the stickiest 1b out there and for alot of cars they are wide enough