I have an Odyssee on my Beemer sixfiddy. It gets shaken around just like it would on a properly used KTM. So far it has withstool all I threw at it (and all I threw myself against
). Very sturdy, and you never have to worry about acid leaking from it when you gently lay you bike on its side again.
Imho worth it's money (and in my case it weighs half as much as the stock battery).