Have I brought this model because of the GSC-10 unfortunately did not fit on my chain stay. Ultimately, I like this model significantly better: a single module at the crank, nothing more. The GSC-10 has in addition a more integrated speed sensor (with spoke magnet), but this is enough for me ultimately the built in computer GPS module, therefore no serious advantage. In addition, this model is more sympathetic to me, because nothing can get caught in the spokes here. At GSC-10 I can imagine (just in superscript "arm" who that part look at a closer, know what I mean), that the sensor is caught in the spokes, he should not keep you on the chain stay again. This problem has not conceivable in this model, because only one sensor is attached to the crank. Connection worked with me easily on Edge 510, was detected just after a few turns of the crank.
