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  1. J

    PAS programming help for BSSHD

    I don't understand the way the power curve is set up on the BBSHD PAS control - doesn't seem to make sense. It appears to source roughly the same current regardless of pedaling cadence. this resulted in a minimum power level of about 5/8HP in PAS1, which resulted in a minimum cruising speed of...
  2. J

    Chainless drive

    This is interesting: http://bike2.dk/wp02
  3. J

    Ideas for power tether (backpack)

    After being wholly unsuccessful in coming up with a battery mounting plan for my bike, I've decided to go with a backpack mount and power tether. I imagine its a good solution for off-road anyway. I'm wondering what those that use backpack batteries use to transmit power to the controller...
  4. J

    BSSHD sizing (68 vs 73)

    I just received a BSSHD kit yesterday and I'm a little puzzled regarding proper install. I ordered the "standard" 68-73mm kit, and was sent a motor stamped '73mm' by Luna, but my bike has a 68mm bottom bracket. Both 68mm and 73mm motors are identical, but I'm wondering if I should be shimming...
  5. J

    Where do you buy your stuff?

    I'm toying with a few ideas regarding making an RC-motor powered road bike, and also some kind of off-road psycho-mobile ebike. I've done a bit of looking around for rudimentary equipment, but haven't had much luck in finding sources for the mechanical parts such as sprockets and freewheels...
  6. J

    BBSHD specified speed (RPM) - too fast?

    I've read from several reviewers that the BBSHD is mis-geared, in that the optimum speed at peak power requires something like a 150RPM cadence. True? What roughly is the specified output cadence at the pedals (via kV) of a BBSHD at 52V?
  7. J

    BBSxx bash plates

    Hey BBSxx owners - have any of you guys mounted up a protective bash plate under the drive unit / front sprocket? Are there any plates that are commercially available, or am I going to be in the plate fabrication business? My property (along with pretty much the rest of NH) is a boulder field...
  8. J

    Last set of BBSHD system (and some bike) questions

    I'm about to order a BBSHD kit to do my first e-bike build, but have a few remaining questions - I'm trying to get everything I need in one shot. I've never owned or even ridden an e-bike before, and I've only seen a couple on the street, so if my questions are idiotic, sorry - I'm ignorant. I...
  9. J

    Bafang PAS - hows it work?

    Could somebody please explain how the BBSxx PAS systems work? I know they're not torque-sensing, but do they keep constant cadence, ground speed, or what? What is the effect of the different settings (1-9)? Thx.
  10. J

    BBSHD or Cyclone 3kW?

    I recently started looking into DIY e-bikes, and I've decided to build a mountain e-bike for trail riding. I'm far more a dirt biker than a bicyclist, so I'm looking for ample power - not exactly looking to pedal, but the thought of what amounts to a 50 pound dirt bike just seems like a real...
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