x3 rc turbo

I have a beadlock wheel 15 inch, I need a valve for this I was wondering if it's a special valve or anything it needs or what size I have to get. Thanks.

I have a maveric can am x3 RC turbo, i have been told that the drive belt comes with a blue die on it, and have been told to remove i should soke in in hot water. Was wondering if this is correct information. Any advice would be grateful thanks.