I was wondering about that. I am afraid that these bars have a bigger sweep than dirt bend bars. It is no problem to put them in my vise with a towel and take a pipe and bend them in two places to get the clearance I need. I did get the longer inboard mounts for fear of the opposite, but can get shorter mounts. They make three different length inboard mountsI got the curved ones,when it is mounted square up to the end of the handlebar,the inboard end just sits off the handlebar.
It needs a good 3 inches distance between handlebar and guard because that's how long the swivel is.
I've mounted a lot of Barkbusters and Acerbis but never Zeta's.Did not realize that they were made in China,thought it was Japan,oh well.