I too was wondering the same thing about my 883 standard. It's a 2007 and I had it built by a Harley mechanic to a 1200 with the screamin eagle Stage 1 kit. I also put a stage 1 screamin eagle air cleaner on it.... with Screamin Eagle slash cut mufflers. I'm 55 and I treat it like a Big twin. It's lucky to have seen 4000 rpm. If I get 100k out of it.... I won't need another bike. Is this right? Thanks !!!