Gear shifter question.
I am currently putting a bike together/collecting parts and would like to get the shimano slx double crankset with bash guard, seems like a good bit of kit with very good reviews for the money. My question is what shifter to use as the only ones i have seen are for triple cranksets exept the saint shifters which are pricey but if they are all thats available thats what it will have to be. I have no idea about setting up gears etc so im sorry if i am missing something obvious. Thanks.