While on a ride over the weekend, my speed sensor for my GB-580 separated and I lost the sensor. Somehow the casing litterally separated after going over an expansion joint of a bridge.
Anyway, I went to the GSSport site and see there is now a new GB-1000 unit that has an integrated speed/cadence sensor. Is this compatible with the GB-580? If so, is it available for purchase and at what price? I prefer having an integrated sensor anyway so when riding on a stationary trainer I can view speed/distance data.
Also, I have been having issues lately with my HR strap intermittently dropping signal and about 15-30 seconds later it returns. Not sure if it's a fit issue or what. I recently replaced the battery thinking that may have been the problem, but it was not resolved with a fresh battery.