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Zebra_Cyclist
Eejit
I stuck a bafang on my surly big fat dummy. In terms of installation it was a piece of piss. Main challenge was mounting the battery but I think the internal triangle of the BFD is smaller than then that of the regular Big Dummy, so I expect you probably won’t have the same issue. I didn’t bother with the gear change or brake sensors, as the need for both is dependent on whether or not you have the sense to stop pedalling when you’re braking / changing gear.
In terms of overall range, not sure what I’d get out of it. I’m Sheffield based, so it mostly does short trips on high power up sharp hills. I do plan to take it out into the Peaks for a fully loaded luxury camp out one evening, reckon it would easily make it there and back again if I resisted kept the power low and relied mostly on pedal power.