28.6 to 31.8 mm Front Derailleur Shim

prusaprinters

<p>Shim that allows use of 31.8 mm clamp FDs on seat tubes with 28.6 mm diameters, no braze-ons.</p> <h3>Updates</h3> <p>15 Jan 17: Printed it for the first time. The curvature is slightly too small when you test fit without pressing them onto a 28.6 mm seat tube, but when you compress them together, they fit perfectly. I think they'll do fine, though I didn't try mounting a front derailleur.</p> Category: Replacement Parts