rockmantex
New member
I have had the same problem with vibration at 68 to 74 since I got my F3. It was not something that would sour me on my Spyder, but it was annoying. I ordered the belt tensioner from Baker Air Wings about a month ago and installed it last weekend. I have gone on 4 rides varying my speeds up to 90 and have had no vibration at all. I did have to make a couple of adjustments after talking to Bruce . Went to a 2" shorter spring and needed a 2 3/4" bolt instead of the 2 1/2" that came in the box for the upper pulley. Just make sure you get the belt centered between the ridges of both pulleys. Bruce at Baker Air Wings was very helpful in walking me thru any questions I had. I hope this solves the vibration problem once and for all.