IFMAR International Jury meeting about minimum tire diameter. This meeting has to do with the minimum tire diameter of 109mm.
Rule 2.4c
- Wheel/tire overall diameter must be: Max dia. 120.00 mm / 4.724 inches
- Min. dia.: 109.00 mm / 4.29 inches
- Width: 47.00 mm / 1.85 inches
- No rim specs
Tire wear here at Redovan is an issue and for the main final we foresee a problem, perhaps already in the earlier finals of 30 minutes, due to the rule above.
After a meeting with the manufacturers followed by a long discussion and a second meeting with the international jury, also with a long discussion the final decision was made to stick to the rules. During the meeting with the tire brands the majority of tire manufacturers told us that preparing a tire for 60 minutes is possible and asked us to stick to the rules.
The tire diameter must be respected , also after the final when cars are checked in technical inspection.
We stick to the rule, meaning 109mm after each race is the minimum for each tire. If smaller you will be disqualified.
For the main final 2 or more sets of tires per driver will be marked and after the final all marked tires must return to technical inspection to be measured.
Source: IFMAR
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