It would be great if all clubs dropped the tire brand / specs entirely. I’m not sure how much money a club gets paid to do that, however. Maybe it’s substantial?
At our club track most people just run MG since that’s what the on track vendor sales. The regulations are void of any preference:
-
TIRE SIZE: Must be CIK/FIA approved tires ONLY suitable for 5" or
6" diameter rims. -
SPRINT TIRES: Only one set of new tires or two sets of used tires
will be allowed per event. All competitors in Sprint, 2 and 4-cycle
classes, must qualify and finish all heats on the same set(s) of tires.
Tires will be marked after qualifying. It will be left to the Race Direc-
tor or Chief of Tech to allow one-for-one replacement of a tire that is
damaged by road hazard or accident. Tires may be reversed on rims,
but must retain original markings. -
SPRINT RACING/RAIN TIRES: If the race is declared a rain race, the
Race Directors may, at their discretion, waive the “qualify and run all
heats” tire rule in Sprint events. The intent of this rule is to allow the
competitor to choose the tire that he/she deems safest in these condi-
tions, rain or slick. This decision may be made at any time during the
course of an event and is to be used to assure safe completion of the
event. Any such announcement of this change will be made to all com-
petitors at the event at which time they may have the option to use any
tires of their choice.