I never really paid much attention to this before since I don’t recall ever having processed any Off-Road motorcycles, but I am now a bit confused by the available categories to select for Bikes. In particular, I wonder what is the difference between “All-Terrain Sports” and “Trail”.

Also, I am unfamiliar with the term “Sporter” and wonder if it should be renamed as “Sport”. I had previously overlooked this category since I thought it meant "Sportser" which is apparently a specific type of Harley. I searched for “Sporter”, and it does not seem to be a proper term for motorcycles. “Sport bike” seems to be the preferred usage for ones like http://www.imcdb.org/vehicle_148229-Suzuki-GSX-R.html

It seems that Wikipedia uses a three category system of Street, Off-Road, and Dual-Purpose. (Scooters and Mopeds are still their own category) http://en.wikipedia.org/wiki/Motorcycle#Types_of_motorcycles
I wonder if a similar system would be more appropriate here as well? But then again, I guess that would introduce the problem of how to handle all of the ones already on the site. And since we are not on the Internet Movie Motorcycle Database, I wonder how much attention and effort should be paid to this subject?