It looks like someone added some extra brackets as a physical stop to prevent the center stand from hitting the chain.
I'm assuming on the center stand itself is a piece that stops itself?
Also I'm assuming that tube doesn't go there...
EDIT: figured it out. my cb350 has cl350 exhausts and according this post the stop was built into the exhaust. the CL has a separate tab on the center stand that stops on the frame.
A forum community dedicated to Honda Twin cylinder motorcycle owners and enthusiasts. Come join the discussion about performance, engine builds, classifieds, modifications, troubleshooting, maintenance, and more!