Want to buy sprocket and adapter.

I'm looking to buy a sprocket and sprocket adapter. I have a 20" so if I remember correctly the sprocket needs to be about a 26 or 27 tooth. I need the adapter to fit the 4" wide rear wheel of a stingray chopper. I'm looking for an adapter like Kings makes.

 

[biken stins]

Your going to need the diameter of hub also. Use caliers to measure.
Good luck.