Recent content by mike_kelly

  1. mike_kelly

    SZZS specific CEF50-main thread (initial builds and troubleshooting related only)

    Here you go. https://www.emtbforums.com/threads/szzs-specific-cef50-main-thread-initial-builds-and-troubleshooting-related-only.32042/page-64#post-486203 Now those measurements are not Q but related. They are the measurement of how far the crankarm is offset at the spindle.
  2. mike_kelly

    SZZS specific CEF50-main thread (initial builds and troubleshooting related only)

    In this thread I posted a picture with measurements of all the cranks I had. The fun part is finding it.
  3. mike_kelly

    SZZS specific CEF50-main thread (initial builds and troubleshooting related only)

    I started out with Miranda carbon which I really like but they are 170 and could not find shorter. I ended up with FSA CK from ebay 155 for only $35 but that seller is out now. Not light but durable. But they should be around elsewhere.
  4. mike_kelly

    Chain Guide or not to chain guide

    Because my chain has never fallen off.
  5. mike_kelly

    Chain Guide or not to chain guide

    On the Rise it is not needed throw the chainguide away.
  6. mike_kelly

    Best way to transport E bikes without lifting

    We started with 80lbs ebikes and hated them. They worked well but managing the weight turned out to just not be practical. My wife, who has been riding mountain bikes for decades, worried about crashing and not being able to get out from under the bike. So I highly recommend a light bike...
  7. mike_kelly

    Lots of Rough miles and Hands "aching"

    I second the SQ Labs 30x and raise the SQ Lab grips.
  8. mike_kelly

    Bafang m820

    I doubt seriously that the Bafang motors are all the same and it is just firmware. The relationship between rpm and kv is linear. So if you had a constant kv, due to the same motor, a 36v motor would run 36/48=.75 or 25% slower. You can't change that in firmware.
  9. mike_kelly

    SZZS specific CEF50-main thread (initial builds and troubleshooting related only)

    I noticed Firon is now selling the CEF50 under his brand name. Seems like a very small player tho.
  10. mike_kelly

    CEF50 External battery build

    Yes the motor is not designed to be used in boost except for short steep climbs. Bafang warns against using it for continuous boost riding and 700whr or larger batteries designed to enable this type of riding. Just not the right motor.
  11. mike_kelly

    CEF50 External battery build

    yep. If you are riding for two hours after work every day the 360whr is fine and lighter. if you want to do epic all day rides you need more juice.
  12. mike_kelly

    CEF50 External battery build

    All you are going to do is charge the main battery from the external, slowly, from the external battery. Not going to help much in a ride. For a 360whr 36v battery 360/36= 10amps 10/2=5 hours or more considering the external battery voltage will drop and as soon as it is lower that the main...
  13. mike_kelly

    Shenzhen Zhaosheng Carbon CEF50 lightweight using Bafang M820 motor (Specifications Thread)

    If you search thru the thread TC did find a US source for custom ti bolts but it is pricey.
  14. mike_kelly

    CEF50 External battery build

    Not possible. The Bafang charge connector is only designed for 2amps, the wires are not big enough to handle the current to drive the motor.
  15. mike_kelly

    SZZS specific CEF50-main thread (initial builds and troubleshooting related only)

    I have a webcam in their office and I see everything they do.
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