[Nonfractal]

Tyres are very much a matter of personal preference. 
The general rule of thumb is to ask at your local club.

Rears:
I use Slot.IT-E1, NSR Ultra , Policar F22, slot.it-n18 or NSR Red on Ninco track depending on the class of racing 
I use ortmann (urethane) or "sculpture" on scalextric sport track depending on the local club rules.

Fronts:
Slot it zeroes or NSR factory fitted tyres. 

There is a thread on the other forum regarding slot.it tyres that you might find useful.
https://www.slotforum.com/forums/index.p...%2Bpresent

In summary, there is no ONE tyre that does everything so using different compounds is a normal thing to do.

AlanW