Tiger Explorer 2018 Tiger 1200xca Lower Dresser Bars

good evening everyone. i have searched and searched and emailed triumph dealers and i can not find a single answer to my question. I'm looking on triumph parts website for the larger lower dresser bars for my 2018 1200xca...there are 3 model numbers with 3 different prices but I can not figure out the difference. The model numbers are: A9788017 (which is $305), A9788001 (which is $275) and T2076968 (which is $290). Might anyone know anything about this and advise as to which one to get? The site says they all fit (thats fine f they all do; but there has to be a reason for the cost difference). Thank you all.

 

thank you so so so so much!!!