I have a 2007 Stratoliner with 85,000 miles. I broke a second drive belt yesterday and now looking for guidance on WHY. Do trikes need a looser belt? Doing a quick inspection I see no signs of sprocket damage and the belt looks brand new. Going to check sprocket alignment today and remove the front sprocket for a detailed inspection. These belts are not cheap (the first one I had to replace near Michigan and cost $750 (just for the belt) as I was on a group ride). If I can't figure out the problem I may convert to chain drive. Oh, I fabricated the trike myself and didn't install a cush drive.