Ebay has had about 15 Spdy solid rear wheels for sale in just the last few months, I saw one wheel cycle through several times without a bid and the start price was $49.95 and $27 shipping. Just for Shts and Giggles, try "Triumph Speedmaster Wheel" on the search bar at EBay. If you change your cush rubber over to a Thunderbird Sport specific cush rubber, you'll quit having issues with that too.