I was contacted with a request to make these gears. Pictured is my test part, and I will be making a batch of these, finishing in June. I will have them up for $189 at that time, but I’m offering a preorder price of $175 until then. There are two versions that I am aware of, one with a 8mm groove width and one with a 10mm. I have good news! I’m making brand new chromoly reverse idle gears. Below is the pre-order link. I should have a batch ready in June