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  1. C

    Dual identical batteries in parallel safety/simplicity Questions

    I have two UPP 48V 20Ah triangle batteries, both the same model, both with identical 2.5A chargers. I'd like to wire them in parallel for extended range in the simplest, safest manner to power my 48V Bafang rear hub drive bike with the stock controller. Chargers use XTR connectors, if memory...
  2. C

    Downtube battery fit question

    Working on my first ebike, a rear geared hub drive 500W 48V Bafang kit on a 29er flat bar hybrid bike. Am looking at batteries, and want the best range I can get. I'm considering a hailing max 48V 21.7Ah Chamrider with Samsung 33G cells. I made a cardboard cutout with the dimensions of the...
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    Newbie rear hub drive Q's- how not to fry my motor

    Have a new Bafang 500W kit with SWX02 geared hub motor in a 700c wheel I will be installing when it warms up a bit in my garage. I weigh 155lbs, and plan to ride mostly paved roads and some gravel roads. Will be using a 48V battery, as I'm aiming for reliability rather than speed. I have...
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    Bafang PAS sensors: why left and right option

    I got a rear hub drive kit, 500W I've yet to install. It came with the different PAS sensors, one for the left and two slightly different versions for the right. The left one appears to be far simpler to install, and I assume it integrates the two separate parts that the right side versions...
  5. C

    Torque Arm for hydroformed aluminum frame

    Am planning to put a 500W Bafang rear geared hub drive motor on this aluminum framed hybrid/ adventure Motobecane 7 speed 29er bike, with a 48v 17.5ah shark battery. I weigh 155lbs. and am not looking for great power or speed; just decent range. Not sure if I need torque arms, but I'd rather...
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    TSDZ2 frame specs?

    A gentleman from Norway was kind enough to provide the specifications below for BBS01, and presumably BBS02. Is there a similar image available to show allowable dimensions for standard install of TSDZ2? Not into bashing in chainstays..
  7. C

    Will TSDZ2 or BBS02 fit on this bike?

    Hey all. New member, first post. Want to put a mid- drive on one of my bikes. I suspect this bike with 68mm BB shell and 2"+ tire width capacity is a no go. Can you tell? The bulky triple mech makes it hard to see, but the chainstays go outboard of the BB shell about 1.75" from center of...
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