Sri Lankan fastfood devotees will be asked to climb aboard a converted double-decker bus to sample bargain buckets of Kentucky Fried Chicken. The country's KFC franchise holder Cargills Food Services (Pvt) Ltd. has invested LKR4m (US$41,638) on an old Ceylon Transport Board bus to offer a mobile fried chicken service and the brand's American owners have agreed to forego their usual 6% royalty cut to give the experiment a boost.