Hate to throw a spanner in the works here mate but have you actually thought this through?
For example...you're using a red ".org" On a red bike the .org won't be seen and it will just look like the standard SV decal
On a silver bike the grey wont be seen and all you'll see is ".org"
I'm confused as to why you want to recreate the stock logo at all. Most people would just mistake it for the logo that came on the bike. I know I would.
I take it the idea behind your logo is to promote the site. If that's so then why not create something unique so that people wont mistake it with the real one?
Look at the SV rider logo...very distinctive...
http://www.svrider.com/goodies.htm