Looks good. I'm not sure the shop will do so well, most people only want to sell their gear to someone in their own city - selling on an international forum might not work. I was doing some research on my bike recently and discovered there are active forums for my particular make and model (cbr500). I was stunned. I'd expected a Honda forum or a Sport bike forum but not down to that level of detail. Maybe include a section for maintenance and for restoration. You've got the vintage section so maybe that's meant to cover it but restoration is a huge topic all on it's own. Consider having a women's section - but there are so many facebook groups for women bikers that it might be hard to get an edge on that. Under general riding add a "distance riders" section for those doing the endurance events etc good luck!
Thanks a ton for the feedback! The CBR500 is a good bike too. My ex started and learned on hers. I have a few bikes... GSXR 1000, 600, and an R6. Anyway, I plan to add some more forums as well, and appreciate your suggestions.