Classified promises an efficiency of 99 percent. This seems quite realistic, since there are no bearings or seals in the gearbox that could cause additional friction.
it's a planetary gear. no bearings for more efficiency? you like bushings? think whatever you want but in my world planetary gearboxes arent as efficient as chain drive with derailleurs by a long stretch and I added links showing this. If you add a planetary gearbox to a 1x chain drive with derailleurs you get all those losses.You're just making up strawmen to argue against. Nobody said no friction. It said REDUCED friction from not having INTERNAL BEARINGS AND SEALS.
That is reduced friction from the type of gearbox you're pretending this is.