Hi Sardine. I do not have moustache handlebars, but I do have bar end shifters on my Surly Cross Check with regular drop handlebars. I was apprehensive initially with the bar end shifters, because I would have to let go momentarily to move my hand down to shift. It's really no big deal though. The shifter for my front chain rings are friction only and for the rear you can set for friction or indexed shifting. The bar end shifters won't work if you have 10 gears in back though. They're meant for 9 speeds, and possibly for 8, but definitely not 10.
Tell us more about your bike. Gears in back? Chainrings up front?



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