Originally Posted by
andychrist
Well as long as the gear sensor timeout in the TSDZ2 is as long as for the brakes I should be fine with it. Purchased the customized model with triple chain rings and since SRAM Rockets are no longer available, will probably have to install thumb shifters — both set to friction if the right hand indexing is not perfectly compatible with a SunRace cassette. So shifting will likely be more sluggish than on most other setups.
Also ordered a Bafang front hub with half twist throttle for the same bike so will be able to keep that open while the TSDZ2 cuts off, therefore shouldn’t be a problem if timeout is a little long.
I don't have a gear sensor, I just use the front brake lever as a clutch while shifting. Even with hydraulic disc brakes you should be able to get the sensor to disconnect without introducing any significant drag. I also use it to disengage the motor to coast up to traffic lights while lightly pedalling.