Rear Footpeg bolts ?
 

guys. do ye know what size of bolts I need to hold the rear footpegs on ??? 06 xtx

if you mean the ones that the foot peg pivot on then they are M6X40 allen cap bolts
if you mean the ones that bolt the bracket to the frame then they're M8X20 button head bolts
stainless steel ones either from your local engineers merchants (cheapest option) or Evil bay willonly be a few Baubees