Hi, Sometime ago Zwift implemented ANT+ Data Page 0x37 to send the rider’s weight to the trainer which is fine but the same message also carries the bike weight which is not user settable as far as I know.
The problem is that Zwift sends a bike weight of 25 kg which is a real issue for trainers capable of dealing with equipment weight set by the application. I believe this is a simple coding mistake because the units for equipment weight are x 0.05 kg instead of x 0.01 kg for the rider. The intent was probably to set a 5 kg bike weight which becomes 25 kg in this case.
See ANT+ message specification below for explanation: