| CPC B62K 23/02 (2013.01) [B62M 25/08 (2013.01)] | 13 Claims |

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1. A radio-transmission bicycle control device, comprising:
a body,
at least one button on the body,
an antenna for connection via radio to a component of the bicycle,
an electronic unit on the body, connected to the at least one button and to the antenna, and
an insert made of a material having resistivity greater than 107 Ωm, wherein the insert is on the body and the antenna is on the insert.
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