Top cases are made by many manufacturers - not just Suzuki (which may be the MOST expensive, too!) They are also made in different sizes, as well. Givi is one brand. This company has a very large selection of top cases. www.twistedthrottle.com and that is where i bought mine. Also a ton of other accessories for your Burgman, as well.
A forum community dedicated to Suzuki Burgman motorcycle owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! Open to all 200, 400, and 650 models!