http://www.makinaparts.com/lang-en/108-sym?n=20&orderby.." onclick="window.open(this.href);return false;.
66,90 €. View. Available 1B01L4A01 Drive Belt Sym MaxSym 400i

I thought £100 for TMax belt was expensive

was about a £100 for the XMax250 - gota MITSUBOSHI (Who are the manufacturer for the OE Yamaha one - not an Athena or Poline type) one from Italy a bit cheaper...