SIGMA SPORT - 00423 cadence transmitter retrofit complete -. For all Sigma Sport STS bike computer from Mod BC 1009 STS and ROX 8.0 / 9.0 (Misc.)
Cadence is transmitted is not always reliable. Then asked, closer to the transmitter magnet or further away is try. Sadly you can only try. Incidentally, the Sigma tachometer is only partially waterproof. Klaus Ziedrich
