hi yes there is a steel ring i have one for a truck i am biulding i will need to make a nuther one and get or make the wooden spokes.
the origonal ring is not round it is six sided measres 3/8 high and 7/16 wide i think ill make a pair of them out of 3/8 round bar and braze 3 or 4 small bits of flat to sit against the rim
