How To Buy Parts
The smart way is to determine the part number required from a parts manual. We have provided manuals below by motorcycle manufacturer. Note that the page number in the manual's table of contents refers to the manual page, not the PDF page.
Once you have the part number, search for the parts. There may be multiple parts that are equivalent, varying by finish, origin. Used parts will have used in the part number and a lot number. Some part numbers have been superceded by newer numbers. When you search on the old number, you will be referred to the new part.