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Well obviously its a sponsor thing because sram HAS to get rid of front derailleurs for good its their #1 priority because FDs are their achilles heel . But this just ain't it for road cycling, with a big chainring the gaps between the (big) cogs are exaggerated a lot. It works with small mtb chainrings but not road chainrings imo.
Maybe vingo is completely fine with that who knows but I wouldn't be