If your bar end weight assembly has been damaged to the point of requiring renewal, then replacing this rubber mounting would be a sensible precaution, allowing easier replacement of the assembly back into the handle bar. To help you order all the parts you need in the event of an accident, or perhaps just to obtain prices for an insurance claim, try browsing the online catalogue for your model? Or if you have a parts book go to the 'search by part number' section of our web site. If you do not possess a parts book we support many models with our online 'parts list' fiche service, check to see if your model is listed?