Z400 gascap on 450r???

[eastside 400]

does anyone know if a Z400 gascap fits a 450r, i wanna get a tusk billet cap from rockymountain but i need a blue one and for the 450r all there is is red black and silver but the Z400 has blue

[450robot]

call up rmatv and ask if they have blue in the honda, they me able to do it since tusk is there company, or they may just not have listed them