CPC F16H 55/303 (2013.01) [B62M 9/00 (2013.01); F16G 13/06 (2013.01)] | 19 Claims |
1. A ring for driving a drive chain for a bicycle, comprising:
a plurality of teeth that are connected to one another and serially arranged;
wherein the plurality of teeth includes a first tooth and an adjacent second tooth;
wherein the first tooth has a first face and a second face and a first tooth thickness measured as a distance between the first face of the first tooth and the second face of the first tooth;
wherein the second tooth has a first face and a second face and a second tooth thickness measured as a distance between the first face of the second tooth and the second face of the second tooth;
wherein the first thickness and the second thickness at their respective thickest points are substantially identical;
wherein a first subset of the plurality of teeth is configured to have a first cross-sectional shape at a respective base; and
wherein a second subset of the plurality of teeth is configured to have a second cross-sectional shape at a respective base that is different from the first cross-sectional shape.
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