I have a set of Nashbar rollers from 1987. The band broke and now I need a replacement. Any suggestions? The LBS has bands for Krettlier's but it is thicker and not quite as long.
it should stretch
If you can measure the length and diameter of the old belt, you should be able to find a suitable replacement from an industrial supply place. McMaster Carr for example. Start your search here: http://www.mcmaster.com/#drive-belts/=93dtpg
Try McMaster Carr and buy O-ring material. Use a micrometer and measure your broken rubber band and buy one similar. You can then measure and super glue the ends together. We do it in our work place.