Transmission fluid buell blast

Follow the recommendations in your Buell owner's manual. Either Forumula Plus, or Sport Trans. Any 20W50 synthetic engine oil is also okay.

For more detailed discussion please check out the Buell Forum at www.BadWeatherBikers.com, specifically the "Knowledge Vault" there. They have a lot of information on all sorts of Buell motorcycles and lots of good information concerning transmission lubrication.