I need to replace my rear swingarm. The part is being ordered today. While im at it the bike, 99’ m900, is reading 27K and i thought it might be a good time to replace chain and sprockets. Please forgive the basic nature of this question but I’m new at pulling my own maintenance on motorcycles. Best case scenario are chains and sprockets replaced as match sets like replacing mtb drive trains so that they mate up well, or should a new chain be sufficient? I hope ive placed this post correctly in the forum and thanks for any help.