Question about Sigma Sport STS 2450 Sender Kit für Rad 2

The "STS 2450 transmitter kit for bike 2" is not directly comparable with the accessories for the Sigma BC 14.16 WL. The Sigma BC 14.16 WL uses an STS Speed Transmitter, which is specifically designed for this model. However, the STS 2450 kit has been developed for the Sigma Originals series, such as the BC 12.0/14.0 WL, for use on a second bike. It contains a speed sensor and a magnet suitable for use with these models.