And without resorting to steroids from lancearmstrong.com. Cadence sensing mid-drive with a large capacity battery driving a 20" rear wheel, is a great combination for dragging cargo and/or fatsos up to higher altitudes. Easier, now that I have increased motor power from the legal 540W I was using back then, to an equally legal 720W. Gain altitude with relaxed attitude with your fully programmable Bafang BBS01B mid-drive, if you can find one. Punier motors need not apply. I was fatter then too.
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