E-bike chainrings, electric bike chainrings, chainrings

The chainrings are made up of gears that mesh the bicycle chain for the transfer of power (usually) to the rear wheel. They generally have spaced teeth to engage all chain links that pass overhead, however in the past some designs (called skip-tooth or inch-pitch) have had one tooth for each double link of the chain link. chain.

By convention, on multi-speed bikes, the largest chainring is on the outside and the smallest is on the inside. The plates range in size from as few as 20 teeth to as many as 55 or possibly more.