Here's part of my reply to a different thread:
Stu says the Gates PL30904 is a perfect fit. He has way more experience than I with the GV250.
That being said, here's what I've found: I bought the PL30904 about a year ago, just now getting serious about changing it.
When removing the CVT cover I see a Bando belt with the Kymco name and number (23100-KHE7-9000.)
With my sad, old eyes, I could see that the Gates was narrower. Will that cause a reduction in top speed?
By the book, the Gates is 893x23x28. Bando is 893x24x30.
Very slight difference, I know, but, I'm a Virgo. We're like that.
I did not install the Gates. First, because I want what appears to be factory original, (the Bando,) and, because I couldn't get the 19mm nut loose.
Anyone have any real experience to compare the Gates with the Bando? BTW, I got the Gates from Rock Auto, at a pretty good price.
www.rockauto.com
