Efficiency, getting real data

[Oran]

Let’s hope I have because I’m getting very close to being able to run some efficiency tests on the hub. I’ve dealt with a few chain alignment issue so they run smoothly now and don’t come off the sprockets. I still have a minor issue with auto shifting to sort and the load resistor needs a larger range so I will get some more heater wire soon and remake that.

I started running a test with the load resister I have and managed 200W through the hub. The initial results for efficiency are looking very good, as in there is only a small variation in the values. The actual values don’t mean anything until I know the efficiency of all the extra chains and bearings. I will have to quantify these extra loses by somehow bypassing the internal working of the hub or by replacing it with a standard rear disc hub, something I don’t happen to have.