Hi, A friend just gave me a set of these (4 pieces) they'll clean up nice. The I/d is 5-3/4", they're 3-3/4" wide inside when booked together and the sprocket bolt circle is 6-3/8". They are at least from the early 70's as my friend is now age 52. Were they used on any particular minibike? Are they just a nice looking generic brand? I'm guessing they use 6" tires and I'm thinking of putting them on a larger frame Ruttman another friend has. Thanks for any info.
Pat
Pat