What is a chainring on a bike?

A bike chainring is a fundamental drivetrain component—a toothed disc mounted on the crankset—that converts pedaling force into rotational motion via the chain, propelling the bicycle forward.

Dating back to the late 19th century, chainrings emerged with the invention of chain-driven bicycles like the 1885 Rover Safety Bicycle, replacing inefficient direct-drive systems (e.g., penny-farthings) and enabling smoother power transfer and gear selection.

Over decades, innovations from brands such as Campagnolo, Shimano, and SRAM have transformed chainring design. Key advancements include:

Compact chainrings (e.g., 50/34T) for improved climbing efficiency by reducing gear gaps.
Oval chainrings (e.g., Rotor Q-Rings), engineered to minimize pedaling dead spots and enhance power delivery.
Narrow-wide tooth profiles, critical for secure chain retention in modern 1x drivetrains.

Currently, mostly our bike is use with 50/34T. But we also can affer customized with 36T or other choice as customer needs. MOQ only 20 pcs.

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