Info for anyone replacing rusty chrome. I bought my old GV with rust, she had sat in a damp garage for 7 years and I am replacing the shot chrome.
The pillion seat strap is an easy fix and the new buckle even fits the old impression on the seat. Looks like Hyosung copied Hondas old CB seat strap buckles exactly. You can pick up Honda CB chrome buckle kits for around £20.