I Nachde years to a wired speedo good experiences have made, it should be a radio model on new bike due to unfavorable cable routing options. Gladly again Sigma. Already at the first exit, I realize that speed and cadence have deficits again and again. When speed sensor I first thought of the range - on my bike about 80cm. However, since the cadence sensor failed repeatedly - So first bought in reach new batteries - of course the expensive, because they should be well indeed. Effect nil - the failures were still there. The following causes I suspect: temperatures When the lights went nothing more.
Hands off! I have now installed the competitive product - wireless - is functioning properly and has the way the better display and a perfect operating concept.
