Skyway had 6 of the rivet machines at the factory. Ken Coster, president of Skyway, has been taking parts off of broken rivet machines over the past few months and was able to build up a machine that worked. He made 40 sets using NOS 1982 flanges. 20 in white, 20 in black. I haven't advertised these at all- only posted a mention of it on the Skyway Facebook page, and now here.
Ken and Skyway have plans for a special 50th Anniversary Tuff Wheel set that has never been seen before, Yes, Skyway turns 50 in 2 more years.
As far as the Tuff Wheels being "limited". Yes, they are. We do make them in small batches, and when we sell out, sometimes we can make more if there is nylon pigment still available. Red is gone, and we haven't had those in a couple of years now. All in all, we've made a very low number. Especially if you consider that MILLIONS of them were made in the 80's.