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Compact crankset
A recent trend is a compromise between the standard road double crankset (with a 39 tooth and a 52 tooth chainrings) and the road triple (with 52, 42, and 30 tooth chainrings). The compact crankset has just two chainrings and a different spider that allows the smaller chainring to have as few as 33 teeth. This provides nearly the same low-end as a triple but without the added weight of a third chainring.