I'm surprised no one has tried making an upgraded belt already, though I'd still be skeptical about putting more than 12K miles on any belt. It would be an expensive mistake if it did let go.
'84 Honda VF750F Interceptor (gone)
'04 Suzuki SV650 (gone)
'87 Honda VFR400R NC24 (gone)
'85 BMW K100RS (gone)