| CPC F16H 55/30 (2013.01) [B62M 9/00 (2013.01); B62M 2009/005 (2013.01)] | 10 Claims |

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1. A bicycle chain ring, comprising:
a plurality of teeth extending radially about an axis of the chain ring, the plurality of teeth comprising:
a first group of teeth having a first width that is at least 96% the width of an outer link gap of a bicycle chain;
a second group of teeth that are at least partially offset from a central plane to a first side and have a second width; and
a third group of teeth that are at least partially offset from a central plane to a second side opposite the first side;
wherein, the first group of teeth have a base that is sized to be centered on a central plane defined through a center portion of the chainring;
wherein the chain ring has a repeating series of teeth comprising:
a first tooth from the first group of teeth;
a second tooth from the second group of teeth;
a third tooth from the first group of teeth;
a fourth tooth from the second group of teeth;
a fifth tooth from the third group of teeth; and
a sixth tooth from the second group of teeth;
wherein the repeating series repeats at least two times consecutively around the chain ring.
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