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Big gaps and oddball combinations are unlikely to work well. I recently tried a 44/28 matched pair for Shimano grx cranks from Specialties TA. Installed with a proper gap, shifting to the little ring was fine, but the shift up to the big ring threw the chain off the right side, if made from one of the 5 smallest sprockets. Many minor tweaks to the FD didn't help. I put my 46/30 Shimano chain rings back on and perfect shifting was restored.
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