This is a very good site if you are looking to improve the overall performance of the motorcycle. Honda Twins is a very active site, if the CB200 is your topic. Good info, well versed members. Although they don't (nor do we) want to hear from some knob who is going attack a good vintage bike with a grinder to create "their vision". https://www.hondatwins.net/index.php
this site was in its prime over 10 years ago...... many of the core peeps moved onto other things and the site.... after it has been sold, and sold again... there are a few of us who chime in every once and awhile.