Originally Posted by
Mugre
The seat tube on our T-50 is a 29.8. This is now a not common size. The stock post has poor adjustment for angle and I'm thinking of a new one. I also want a Thudbuster for the little engine that could at my back. We ride in an urban environment and there's too many bumps and cracks to call though I will continue too call the bigger ones. Is there any big disadvantage or loss of strength when using a shim from the next size down? The Thudbuster doesn't come in 29.8 though I could order a Kalloy for the front post.
Mugre
You could run a shim 27.2x29.8. I wouldent make a shim from a can its not very safe
shims are cheap tandems east has a nice shim slection that they make and they are not expensive tandems east also had the thudbuster in stock the stoker should have one go to tandemseaat.com or call for them for help Mel if very helpful on the phone 856-451-5104