dunno my size...please help

[stvgav001]

i am 181cm tall and am looking at getting a raleigh bike. but i know the sizes are slightly different to normal, so what size raleigh should i get??  bearing in mind that i may want to use it for triathlon so slightly small rather than slightly big is good i think...or not???  please help me.  my inseam is 84cm if that helps....

[rad006]

large as raleigh is smaller than most sizes