Single-ring drivetrains are becoming increasingly popular for everything from cross-country to enduro racing. With the emergence of SRAM’s XX1 group, and the soon-to-be-released X01 group, the "one-by ...

Not all chainrings fit all cranksets. Most chainrings mount via a four- or five-arm ‘spider’ (the arms/spokes on the crankset). The spacing between these arms differs based on the intended gear range ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. How we test gear. Like that first cup of coffee and a post-ride high: nothing lasts forever—not ...

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