Hi Glyn
I dont know the Gates numbers for the ST2. So you have a choice of getting the numbers of your own belts. Or asking the chap I got mine off. I have had a look on his site and cant find ST2 ones stocked but i would think he would have them.
His address is
www.mdinaitalia.co.uk and his e mail is
john@mdinaitalia.co.uk. His price was the same as quoted by the Gates importer the only extra is the P+P which is about 5 or 6 quid