<R6>Can we use other flex / compliant wheels in the VEX VRC competition? Flex wheels from VEX are impossible to obtain. Other companies offer similar products (Andymark for instance). If all properties are equal with the exception of the color, can we us other wheels?
No. As described in rule <R6>, all wheels must either be official VEX V5 components or be built using only official VEX V5 components or other legal materials (e.g., certain types of non-shattering plastic as allowed by rule <R9>). Wheels from other product lines, including flex / compliant wheels, are prohibited.