chainring

Noun.  The large forward ring on a bicycle that a chain attaches to, in order to transfer energy to a wheel. A bicycle chainring consists of one or more sprockets that are driven by the cranks and pedals of the bicycle.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.