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  1. M

    Bafang BBSHD and gear system for fast commuter bike

    Hi. I downloaded the STC program for running Daniel Nilssons firmware but Norton complains the STC contains the virus IDP.ALEXA.54 and put it into quarantine. Has anyone run into this problem?
  2. M

    Bafang BBSHD and gear system for fast commuter bike

    I will take a picture of myself with the gear and and post it. I forgot the feet. There I use pretty standard winter low boots/high shoes (see picture) and if it gets below -10 C snow mobile boots of the good value brand Raven see link of the model I have below. They are really warm but you...
  3. M

    Charging 52v 25 Ah UPP in a warmed and closed box outdoors in winter

    Thanks for info! I am quite sure it contains the right amount of cells because it is bigger and heavier than my previous Hailong Max 21Ah. And it is heavy as hell. Not 100% convinced of the capacity yet since I think it drains surprisingly fast at full power although it recuperates a part of...
  4. M

    Bafang BBSHD and gear system for fast commuter bike

    Yes. I need to reprogram my controller. That link looks really interesting. Among other things so that full 100% power is on the 9th power level. Now I have the 9th plus throttle making it full speed. I also need to change the constant continuous current up to 30 A from 25 A. Battery claims it...
  5. M

    Charging 52v 25 Ah UPP in a warmed and closed box outdoors in winter

    Thank you for your input! I am not worried about storage, but the charging feels a bit risky in relation to the consequences considering I live in a hundred year old wooden house. I might use my new bluetooth grill thermometer and try to measure the temperature inside the cooler during...
  6. M

    Charging 52v 25 Ah UPP in a warmed and closed box outdoors in winter

    I have been riding electric DIY l bikes for 14 years now and for the last 2.5 years went for BBSHD middrive and as of a week ago a UPP Polly 25 Ah with Samsung 5000 cells (if that is what they are). However, I have recently been more worried about battery fire (I live in a wooden house) and...
  7. M

    Bafang BBSHD and gear system for fast commuter bike

    Well, the easiest part is the actual riding. I use winter tires with metal small "spikes ", I think you call them studded tires. They resemble older MTB tires but with the addition of small metal studs. Here you can buy them everywhere where they sell bikes. Basically the same kind of tires we...
  8. M

    Bafang BBSHD and gear system for fast commuter bike

    I gave up on using derailleurs since I had to adjust the frame, or find an adapter in order to fit a good one. The Shimano Tourney that fits bolt on was simply too week for 1250 W. Since I also ride all year round in snowy and salt/sand winter an IGH with a sturdy single speed chain is so much...
  9. M

    Bafang BBSHD and gear system for fast commuter bike

    An update to the post. I ended up buying the Shimano Nexus SG-C7000-5D (5 speed) IGH that is made for ebikes. It is really good value and it has worked well now for around 1500 miles. As a bonus I learned to build wheels since it was really hard to find the hub already in a wheel and the cost of...
  10. M

    Bafang BBSHD and gear system for fast commuter bike

    Hi! Thanks for your thoughts. I think I am quite good at not shifting gears under power, though I normally do that by applying the brake to cut power, or just by stopping pedaling. I also down shift when running slowly or stopping, like I would without motor assist. My derailers seem to have...
  11. M

    Bafang BBSHD and gear system for fast commuter bike

    Hi I live in Sweden and use my bike to commute to work and sometimes to take two kids in a trailer. I have had a BBSHD (1000W, 52V model=around 1200-1300 W at full throttle) for almost a year now on an old 1990 bike (Swedish Crescent Positron 5, steel frame, 28 inch, regular bike). I have had...
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